XD11.EXE is Worm Dorkbot

June 10, 2012 by NightWatcher
Filed under: Worm 
: Solved!

Fix it immediately:

The file XD11.EXE is malware related.
You must delete the file XD11.EXE immediately!
Delete the file XD11.EXE without delay!
Kill the process XD11.EXE and remove XD11.EXE from the Windows startup.

Malware Analysis of XD11.EXE
Full path on a computer: %Startup%\xd11.exe

Detected by UnHackMe:

Item Name: 1.exe
Author: Unknown
Related File: %APPDATA%\1.EXE
Type: Detected using Heuristic Algorithm

Item Name: 3.exe
Author: Unknown
Related File: %APPDATA%\3.EXE
Type: Detected using Heuristic Algorithm

Item Name: Microsoft DLL Registration
Author: Unknown
Related File: %APPDATA%\REGSRV15.EXE
Type: Registry Run

Item Name: xd11.exe
Author: Unknown
Related File: %STARTUP%\XD11.EXE
Type: Startup Folder

Item Name: 2.exe
Author: Unknown
Related File: %APPDATA%\2.EXE
Type: Detected using Heuristic Algorithm

Item Name: regsrv14.exe
Author: Unknown
Related File: %APPDATA%\REGSRV14.EXE
Type: Detected using Heuristic Algorithm

Item Name: regsrv15.exe
Author: Unknown
Related File: %APPDATA%\REGSRV15.EXE
Type: Detected using Heuristic Algorithm

After first reboot detected by UnHackMe:

Item Name: Cyzqzs
Author: Unknown
Related File: %APPDATA%\CYZQZS.EXE
Type: Registry Run

Item Name: Cyzqzs.exe
Author: Unknown
Related File: %APPDATA%\CYZQZS.EXE
Type: Detected using Heuristic Algorithm

Removal Results: Success
Number of reboot: 2

XD11.EXE is known as:

Worm.Dorkbot, Trojan.Vicenor, Trojan.Kryptik, Trojan.ADH, Trojan.Buzus, BackDoor.IRC.NgrBot

XD11.EXE hash:

  • MD5: 293eda46a0ca5b473f310ffa3024dd05
The file tries to download information from some web sites.
How to quickly detect XD11.EXE presence?

Registry:
  • HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Cyzqzs: “%Appdata%\Cyzqzs.exe”
  • HKCU\Software\Microsoft\Windows\CurrentVersion\Run\Microsoft DLL Registration: “%Appdata%\regsrv14.exe”
Files:
  • %Appdata%\1.exe
  • %Appdata%\2.exe
  • %Appdata%\3.exe
  • %Appdata%\Cyzqzs.exe
  • %Appdata%\regsrv14.exe
  • %Appdata%\regsrv15.exe
  • %Startup%\xd11.exe


Recommended: UnHackMe anti-rootkit and anti-malware

Premium software: RegRun Security Suite (Good choice for removal and protection)

Written by

Malware Hunter.

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