Summary

Summary
Action
More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 3 November 2009 23:16:12 (GMT) |
| Detected by | All Sophos products |
- Free virus, spyware, and adware scan
- Test your existing anti-virus protection
- Find threats your anti-virus missed
Action

Summary
Action
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Your options
- Please send us a sample to assist in improving our technology
- Use the instructions for removing generically detected files to delete the file from your computer
- If problems persist, contact Sophos support for assistance with removal
More Information
Mal/RatHak-A is a malicious file for the Windows platform.
When Mal/RatHak-A is run the following files are created:
<Start Menu\Programs>\\Startup\(Empty).LNK
<Windows>\inf\Autoplay.inF
<System>\gHost.exe
<System>\KHATRA.exe
<Windows>\KHATARNAKH.exe
<Windows>\Xplorer.exe
<Root>\KHATRA.exe
The following registry entry is created to run Mal/RatHak-A on startup:
HKCU\Software\Microsoft\Windows NT\CurrentVersion\Windows
load
<System>\KHATRA.exe
Mal/RatHak-A changes settings for Microsoft Internet Explorer by modifying values under:
HKCU\Software\Microsoft\Internet Explorer\Main\
The following registry entry is set, disabling system software:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
0x00000001
Registry entries are set as follows:
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run
G_Host
<System>\gHost.exe" /Reproduce
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Taskman
<System>\KHATRA.exe
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoControlPanel
0x00000001
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL
CheckedValue
0x00000000
HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
Hidden
0x00000000
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NoDriveTypeAutoRun
0x000000ff
Registry entries are created under:
HKCU\Software\Nico Mak Computing

