Packed.Win32.MysticCompressor_2fe25d2d2e

by malwarelabrobot on October 15th, 2013 in Malware Descriptions.

HEUR:Trojan.Win32.Generic (Kaspersky), Trojan.Win32.Generic!SB.0 (VIPRE), Virus.Win32.Cryptor!IK (Emsisoft), PackedMysticCompressor.YR (Lavasoft MAS)
Behaviour: Trojan, Virus, Packed


The description has been automatically generated by Lavasoft Malware Analysis System and it may contain incomplete or inaccurate information.

Summary
Technical Details
Removal Recommendations

MD5: 2fe25d2d2e2ec1480ec949be2e676735
SHA1: 63a9a466cebdf3800f35e62585dd1bd5fc0759dd
SHA256: 956ecd2a89a2c60a3b83832935f6537dc418e3c9c38ffcdc0d0ba0b5e07a6413
SSDeep: 6144:zeVWLwdzsa2QvNdDwdWuCZX RdfOTHyU3:ze8QzRv71VsgT3
Size: 203955 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2012-07-25 05:45:37


Summary:

Packed. A packed file can be a compressed and/or encrypted in a manner that prevents matching the memory image of that file and the actual file on disk. Sometimes used for copy protection, packers are often used to make Spyware less easy to analyze/detect.

Payload

No specific payload has been found.

Process activity

The Packed creates the following process(es):

ylamihu.exe:1196
Reader_sl.exe:1064
wuauclt.exe:344
2fe25d2d2e2ec1480ec949be2e676735.exe:1572
jusched.exe:1056

The Packed injects its code into the following process(es):

ylamihu.exe:576
osogduatas.exe:540

File activity

The process ylamihu.exe:576 makes changes in a file system.
The Packed creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Cookies\Current_User@google[2].txt (649 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\I32X81K9\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBGV4N63\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBGV4N63\google[1].htm (4708 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@google[3].txt (645 bytes)
%Documents and Settings%\%current user%\Cookies\index.dat (3856 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\ETWZIDC3\desktop.ini (67 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@google[1].txt (523 bytes)
%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\6GT0B0AX\desktop.ini (67 bytes)

The Packed deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBGV4N63\google[1].htm (0 bytes)
%Documents and Settings%\%current user%\Cookies\Current_User@google[1].txt (0 bytes)

The process wuauclt.exe:344 makes changes in a file system.
The Packed creates and/or writes to the following file(s):

%WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
%WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
%WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)

The Packed deletes the following file(s):

%WinDir%\SoftwareDistribution\DataStore\Logs\tmp.edb (0 bytes)

The process 2fe25d2d2e2ec1480ec949be2e676735.exe:1572 makes changes in a file system.
The Packed creates and/or writes to the following file(s):

%WinDir%\Tasks\Security Center Update - 232797119.job (864 bytes)
%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe (203 bytes)
%Documents and Settings%\%current user%\Local Settings\Temp\tmpbc538170.bat (177 bytes)
%System%\osogduatas.exe (1281 bytes)

The process jusched.exe:1056 makes changes in a file system.
The Packed creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)

Registry activity

The process ylamihu.exe:576 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 17 00 00 00 01 00 00 00 00 00 00 00"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\e1rfHQ]
"Tasks" = "97 00 00 00 11 0D 01 00 00 00 2C 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\e1rfHQ]
"Tasks" = "97 00 00 00 11 0D 01 00 00 00 2C 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FA 85 C6 C2 FD D4 40 0B 5C 15 FA F2 02 7E C5 E9"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

[HKLM\System\CurrentControlSet\Control\Session Manager\SubSystems]
"Windows" = "%System%\csrss.exe ObjectDirectory=\Windows SharedSection=1024,1536,512 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ProfileControl=Off MaxRequestThreads=16"

To automatically run itself each time Windows is booted, the Packed adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Oparxota" = "%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe"

The Packed modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Packed modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

To automatically run itself each time Windows is booted, the Packed adds the following link to its file to the system registry autorun key:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"Oparxota" = "%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe"

The Packed modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Packed deletes the following registry key(s):

[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\LanmanWorkstation]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E97D-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\sermouse.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\termservice]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Netlogon]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\TDI]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\rdpcdd.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Browser]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\SCSI Class]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\sermouse.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Boot Bus Extender]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetBT]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\sr.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{36FC9E60-C465-11CF-8056-444553540000}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\WinMgmt]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\File system]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\DcomLaunch]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\dmserver]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{745A17A0-74D3-11D0-B6FE-00A0C90F57DA}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\EventLog]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Messenger]
[HKLM\System\CurrentControlSet\Control\SafeBoot]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E980-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Ndisuio]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Boot Bus Extender]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\CryptSvc]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E974-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetBIOSGroup]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96F-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\RpcSs]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\ipnat.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\SCSI Class]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E967-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Filter]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\vgasave.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\PlugPlay]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\rdpdd.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Tcpip]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E97D-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NDIS Wrapper]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Boot file system]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\PNP Filter]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetDDEGroup]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\HelpSvc]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Primary disk]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Netlogon]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\vga.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E967-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\CryptSvc]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Primary disk]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\vga.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\WZCSVC]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\System Bus Extender]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\dmserver]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E977-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\System Bus Extender]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\vgasave.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{71A27CDD-812A-11D0-BEC7-08002BE2092F}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetMan]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Base]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\File system]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\dmadmin]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\AppMgmt]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\tdtcp.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\PCI Configuration]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\LanmanServer]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\HelpSvc]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\ip6fw.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E96A-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\AFD]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Streams Drivers]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\DcomLaunch]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\dmboot.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Base]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\DnsCache]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96A-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NtLmSsp]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\dmload.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E965-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\WinMgmt]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E980-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E977-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\dmboot.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\rdsessmgr]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E975-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\PlugPlay]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\dmadmin]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetBIOS]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NDIS]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E97B-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Dhcp]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\dmload.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E96B-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\SRService]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\nm.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\PNP_TDI]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\rdpwd.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{745A17A0-74D3-11D0-B6FE-00A0C90F57DA}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\Boot file system]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\dmio.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\AppMgmt]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\PCI Configuration]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\NetworkProvider]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\RpcSs]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\nm]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E969-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\PNP Filter]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\EventLog]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Network]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{36FC9E60-C465-11CF-8056-444553540000}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\sr.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\LmHosts]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E96F-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\Filter]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\SRService]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E97B-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E96B-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E973-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\tdpipe.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\dmio.sys]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{4D36E965-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Minimal\{71A27CDD-812A-11D0-BEC7-08002BE2092F}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\{4D36E969-E325-11CE-BFC1-08002BE10318}]
[HKLM\System\CurrentControlSet\Control\SafeBoot\Network\SharedAccess]

The Packed deletes the following value(s) in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"

The process ylamihu.exe:1196 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Directory" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CacheLimit" = "65452"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path4]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache4"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cookies" = "%Documents and Settings%\%current user%\Cookies"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path2]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache2"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Common AppData" = "%Documents and Settings%\All Users\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"Cache" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files"

[HKLM\System\CurrentControlSet\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections]
"SavedLegacySettings" = "3C 00 00 00 16 00 00 00 01 00 00 00 00 00 00 00"

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "07 F5 8A 28 72 CA 30 8F 3B 5D C1 B6 ED 3E 09 D6"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path1]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache1"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CacheLimit" = "65452"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MigrateProxy" = "1"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"History" = "%Documents and Settings%\%current user%\Local Settings\History"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\path3]
"CachePath" = "%Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\Cache3"

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths]
"Paths" = "4"

The Packed modifies IE settings for security zones to map all local web-nodes with no dots which do not refer to any zone to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"UNCAsIntranet" = "1"

The Packed modifies IE settings for security zones to map all web-nodes that bypassing proxy to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"ProxyBypass" = "1"

Proxy settings are disabled:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyEnable" = "0"

The Packed modifies IE settings for security zones to map all urls to the Intranet Zone:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap]
"IntranetName" = "1"

The Packed deletes the following value(s) in system registry:

[HKLM\SOFTWARE\e1rfHQ]
"Tasks"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyServer"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"ProxyOverride"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"AutoConfigURL"

[HKCU\Software\e1rfHQ]
"Tasks"

The process Reader_sl.exe:1064 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd73-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd72-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{b98117e8-75ca-11e2-81b2-000c293708fb}]
"BaseClass" = "Drive"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{c155cd75-744b-11e2-8294-806d6172696f}]
"BaseClass" = "Drive"

The process osogduatas.exe:540 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "FA 45 FF D5 7A 6F EA 74 A0 7E 47 9B CB C7 7B 63"

[HKU\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\LocalService\Application Data"

To automatically run itself each time Windows is booted, the Packed adds the following link to its file to the system registry autorun key:

[HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"Oparxota" = "%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe"

The process 2fe25d2d2e2ec1480ec949be2e676735.exe:1572 makes changes in a system registry.
The Packed creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "5A 37 E9 AD AD 70 3B F8 41 14 84 28 7B 2D 30 07"

[HKCU\Software\Yglsehhsrs]
"License" = "444"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]
"AppData" = "%Documents and Settings%\%current user%\Application Data"

[HKLM\SOFTWARE\Yglsehhsrs]
"License" = "444"

Network activity (URLs)

No activity has been detected.

Rootkit activity

No anomalies have been detected.

Propagation


Remove it with Ad-Aware

  1. Click (here) to download and install Ad-Aware Free Antivirus.
  2. Update the definition files.
  3. Run a full scan of your computer.


Manual removal*

  1. Terminate malicious process(es) (How to End a Process With the Task Manager):

    ylamihu.exe:1196
    wuauclt.exe:344
    2fe25d2d2e2ec1480ec949be2e676735.exe:1572

  2. Delete the original Packed file.
  3. Delete or disinfect the following files created/modified by the Packed:

    %Documents and Settings%\%current user%\Cookies\Current_User@google[2].txt (649 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\I32X81K9\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBGV4N63\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\IBGV4N63\google[1].htm (4708 bytes)
    %Documents and Settings%\%current user%\Cookies\Current_User@google[3].txt (645 bytes)
    %Documents and Settings%\%current user%\Cookies\index.dat (3856 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\ETWZIDC3\desktop.ini (67 bytes)
    %Documents and Settings%\%current user%\Cookies\Current_User@google[1].txt (523 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temporary Internet Files\Content.IE5\6GT0B0AX\desktop.ini (67 bytes)
    %WinDir%\SoftwareDistribution\DataStore\Logs\edb.chk (100 bytes)
    %WinDir%\SoftwareDistribution\DataStore\Logs\edb.log (3576 bytes)
    %WinDir%\SoftwareDistribution\DataStore\DataStore.edb (100 bytes)
    %WinDir%\Tasks\Security Center Update - 232797119.job (864 bytes)
    %Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe (203 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\tmpbc538170.bat (177 bytes)
    %System%\osogduatas.exe (1281 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\jusched.log (347 bytes)

  4. Delete the following value(s) in the autorun key (How to Work with System Registry):

    [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
    "Oparxota" = "%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe"

    [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
    "Oparxota" = "%Documents and Settings%\%current user%\Application Data\Efleorf\ylamihu.exe"

  5. Reboot the computer.

*Manual removal may cause unexpected system behaviour and should be performed at your own risk.