Trojan-PSW.Win32.Zbot.4_c5eec1d6c0

by malwarelabrobot on October 13th, 2013 in Malware Descriptions.

Trojan.Win32.Bublik.bhuf (Kaspersky), Trojan.Win32.Generic!SB.0 (VIPRE), Trojan-PSW.Win32.Zbot.4.FD, GenericInjector.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan


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: c5eec1d6c0268ee2bbccfe1ea345ba1d
SHA1: 314fcf53896442b6aa99786db8f40154dbc39068
SHA256: 0164fd636ca13452dabc4e02b4bbe5c7789de1f71ffb6fbd4c85575e74818d17
SSDeep: 6144:cK NJhSNbgydtpi2VPsTujij5DnuTjRsqpWPLVMQysGra0R 5XK/GJSK:GSFfGyyu2JnUy0WpMXraZY/BK
Size: 336384 bytes
File type: EXE
Platform: WIN32
Entropy: Not Packed
PEID: UPolyXv05_v6
Company: Download Manager
Created at: 2013-10-11 00:10:17


Summary:

Trojan-PSW. Trojan program intended for stealing users passwords.

Payload

No specific payload has been found.

Process activity

The Trojan-PSW creates the following process(es):

icqi.exe:1072
c5eec1d6c0268ee2bbccfe1ea345ba1d.exe:1276

File activity

The process icqi.exe:1072 makes changes in a file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\NTUSER.DAT.LOG (6576 bytes)
%Documents and Settings%\%current user%\NTUSER.DAT (5940 bytes)

The process c5eec1d6c0268ee2bbccfe1ea345ba1d.exe:1276 makes changes in a file system.
The Trojan-PSW creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\HBI351C.bat (173 bytes)

Registry activity

The process icqi.exe:1072 makes changes in a system registry.
The Trojan-PSW creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "8D 1C 6E 42 C8 5B FA F0 FE 97 61 29 C4 97 F0 C6"

[HKCU\Software\Microsoft\Wupopel]
"g82gj7a" = "tsDKHAv1dXIOqqqGbAA="

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

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

Network activity (URLs)

URL IP
hxxp://www.google.com/ 74.125.226.147
hxxp://www.google.ca/?gws_rd=cr&ei=xMBYUpnxOoquqwGHi4GgBw 74.125.226.152


Rootkit activity

The Trojan-PSW installs the following user-mode hooks in WININET.dll:

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetWriteFile
InternetWriteFileExA
InternetQueryDataAvailable
HttpQueryInfoW
HttpSendRequestExW
InternetReadFile
HttpQueryInfoA
HttpSendRequestA
InternetCloseHandle

The Trojan-PSW installs the following user-mode hooks in CRYPT32.dll:

PFXImportCertStore

The Trojan-PSW installs the following user-mode hooks in USER32.dll:

GetClipboardData
TranslateMessage

The Trojan-PSW installs the following user-mode hooks in Secur32.dll:

DecryptMessage
SealMessage
DeleteSecurityContext

The Trojan-PSW installs the following user-mode hooks in WS2_32.dll:

WSAGetOverlappedResult
WSASend
recv
gethostbyname
WSARecv
send
closesocket
freeaddrinfo
getaddrinfo
GetAddrInfoW

The Trojan-PSW installs the following user-mode hooks in ntdll.dll:

LdrLoadDll
NtCreateThread

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. Scan a system with an anti-rootkit tool.
  2. Terminate malicious process(es) (How to End a Process With the Task Manager):

    icqi.exe:1072
    c5eec1d6c0268ee2bbccfe1ea345ba1d.exe:1276

  3. Delete the original Trojan-PSW file.
  4. Delete or disinfect the following files created/modified by the Trojan-PSW:

    %Documents and Settings%\%current user%\NTUSER.DAT.LOG (6576 bytes)
    %Documents and Settings%\%current user%\Local Settings\Temp\HBI351C.bat (173 bytes)

  5. Clean the Temporary Internet Files folder, which may contain infected files (How to clean Temporary Internet Files folder).
  6. Reboot the computer.

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