MD5: 46a8d29e0b0ad005258452530a50acb1
SHA1: ba8ea7bf0be51eae1061040470793338af9b369c
SHA256: 7d164a63a237e031de60c8541d9ad331f72127f1748dbf62eabe2f772859aace
SSDeep: 6144:lMdbHniiav4BnRcXjdQ7ZHHgYjKAB0HBC2pZr:iHikdRojdQ7REvCMZr
Size: 314368 bytes
File type: EXE
Platform: WIN32
Entropy: Packed
PEID: UPolyXv05_v6
Company: QuickSet
Created at: 2006-12-01 05:24:18

Summary:

Trojan. A program that appears to do one thing but actually does another (a.k.a. Trojan Horse).

Payload

No specific payload has been found.

Process activity

The Trojan creates the following process(es):

%original file name%.exe:832

File activity

The process %original file name%.exe:832 makes changes in the file system.
The Trojan creates and/or writes to the following file(s):

%WinDir%\AppPatch\pahkdq.exe (2053 bytes)
%System%\config\software (2440 bytes)
%System%\config\SOFTWARE.LOG (5347 bytes)

The Trojan deletes the following file(s):

%Documents and Settings%\%current user%\Local Settings\Temp\1.tmp (0 bytes)

Registry activity

The process %original file name%.exe:832 makes changes in the system registry.
The Trojan creates and/or sets the following values in system registry:

[HKLM\SOFTWARE\Microsoft\Cryptography\RNG]
"Seed" = "38 2C AF F2 58 76 00 6C DA 25 DA 60 7D C7 6C EA"

[HKLM\System\CurrentControlSet\Control\Session Manager]
"PendingFileRenameOperations" = "\??\%WinDir%\apppatch\pahkdq.exe_, \??\%WinDir%\apppatch\pahkdq.exe"

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"a8a67a25" = "pEìX£bÀ¸¬qÄHF‡KöRø{8·³oD¬<»¹œ³ŒQ\´òd¼Œ¤Kô1,Å $ë›ÛÌ«”¹l}Ë {Å“zΙC%é[qñl4ì;û´[Ã’
#»Û:ÑU„„ԝ\±ª²Dƒuœ¡Ü¼);¼\ƒtµ2”kDù”a”*›cü$}Sô|ë$¤ô{¬q³#sÅå\yuJÛËu©|ù
¢rKã!$’‹‹b±ÃÄ£ãÍ‚“ÉUcdÁÄZ¡r»ô”)Û©Š]“QlYÛl]$$D´ƒÌ£Q$aŒ‚*â„¢ü›ÙóÍÁ=éÔÑщ¬
q9|áíù’‘íÁ©šÄR"

Network activity (URLs)

URL	IP
hxxp://50.116.56.144/login.php

HOSTS file anomalies

No changes have been detected.

Rootkit activity

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

CertVerifyCertificateChainPolicy

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

HttpSendRequestExA
HttpSendRequestW
InternetReadFileExA
InternetWriteFileExA
InternetQueryDataAvailable
HttpSendRequestExW
InternetReadFile
HttpSendRequestA
InternetCloseHandle

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

GetWindowTextA
GetClipboardData
SendInput
GetMessageA
GetMessageW
TranslateMessage

The Trojan installs the following user-mode hooks in ADVAPI32.dll:

CryptEncrypt

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

WSASend
recv
gethostbyname
WSARecv
send

The Trojan installs the following user-mode hooks in kernel32.dll:

CreateFileW

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):
   

   %original file name%.exe:832

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

   %WinDir%\AppPatch\pahkdq.exe (2053 bytes)
   %System%\config\software (2440 bytes)
   %System%\config\SOFTWARE.LOG (5347 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.