Tuesday, June 24, 2014

kpcgrhynko.vbs Analysis and Removal


Analysis


Virustotal scan

SHA256: f7dacc9caf962fde36c35608ecfd8a1a591185d89f9584574f158795b6ae29c0
File name: COOL.vbs

Keys added:1
HKLM\SOFTWARE\kpcgrhynko

Values added:2
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\kpcgrhynko: "wscript.exe 
//B "C:\Documents and Settings\user\Application Data\kpcgrhynko.vbs""
HKLM\SOFTWARE\kpcgrhynko\: "false - 6/25/2014"

Files added:4
C:\Documents and Settings\user\Application Data\kpcgrhynko.vbs
C:\Documents and Settings\user\Start Menu\Programs\Startup\kpcgrhynko.vbs

D:\autorun.inf
D:\
kpcgrhynko.vbs

Removal

  • Terminate wscript.exe process

  • Remove the kpcgrhynko.vbs entries from Startup using CCleaner.  Take note of the path of the worm.  Highlight them and click the Delete button. 




  • Delete all occurences of kpcgrhynko.vbs including all autorun.inf in all drives.
  • Delete HKLM\SOFTWARE\kpcgrhynko with Regedit
  • Using fix.reg to remove registry entries.  Copy/Paste the following to Notepad and save as fix.reg.  Double click on this file or right-click and Merge to Registry.

REGEDIT4

[-HKEY_LOCAL_MACHINE\SOFTWARE\kpcgrhynko]

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
"kpcgrhynko"=-


  • Scan with an updated Antivirus.



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