TROJAN-PSW.WIN32.ZBOT_52d3b26a03

by malwarelabrobot on December 20th, 2013 in Malware Descriptions.

Trojan.Win32.Scarsi.uhm (Kaspersky), Trojan.Win32.Generic!BT (VIPRE), GenericInjector.YR, BackdoorCaphaw_QKKBAL.YR, TrojanPSWZbot.YR (Lavasoft MAS)
Behaviour: Trojan-PSW, Trojan, Backdoor


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: 52d3b26a03495d02414e621ee4d0c04e
SHA1: b3f8fbf715ab4ce38557b27246de15e32682d1ab
SHA256: e6adbb4cd6bd23ed1e3d65c896c463850674439b4a771ee8924013c877a03665
SSDeep: 24576:yhQ31kHu2EnDNpSkGXaUWrPoIUihhON06Fo6Z/B5fqt:yKAu/pSsjoIFRL6ZGt
Size: 1245328 bytes
File type: broken
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: no certificate found
Created at: 2013-11-27 18:59:26
Analyzed on: WindowsXP SP3 32-bit


Summary:

Backdoor. Malware that enables a remote control of victim's machine.

Payload

No specific payload has been found.

Process activity

The Backdoor creates the following process(es):

iqga.exe:2388
iqga.exe:1764
%original file name%.exe:860
%original file name%.exe:3180

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

ctfmon.exe:1240

File activity

The process %original file name%.exe:3180 makes changes in the file system.
The Backdoor creates and/or writes to the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\tmp3191bac0.bat (177 bytes)
%Documents and Settings%\%current user%\Application Data\Itqeok\iqga.exe (2293904 bytes)

Registry activity

The process iqga.exe:2388 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "1A E2 0E 32 D3 D3 6D B0 D9 C5 F5 D2 A5 85 01 AF"

The process iqga.exe:1764 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "24 39 8E D6 4C 18 14 D7 26 08 FC D5 24 37 9C 74"

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

The process %original file name%.exe:860 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "E3 CB 36 72 89 92 98 84 F1 1D A0 08 6F F1 3E 2D"

The process %original file name%.exe:3180 makes changes in the system registry.
The Backdoor creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "57 9E 8C AD 0E 31 01 30 B6 15 F2 23 22 93 F7 76"

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

The process ctfmon.exe:1240 makes changes in the system registry.
The Backdoor deletes the following value(s) in system registry:
The Backdoor disables automatic startup of the application by deleting the following autorun value:

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
"internat.exe"

Network activity (URLs)

URL IP
checkip.dyndns.org


HOSTS file anomalies

No changes have 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):

    iqga.exe:2388
    iqga.exe:1764
    %original file name%.exe:860
    %original file name%.exe:3180

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

    %Documents and Settings%\%current user%\Local Settings\Temp\tmp3191bac0.bat (177 bytes)
    %Documents and Settings%\%current user%\Application Data\Itqeok\iqga.exe (2293904 bytes)

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

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