high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 14 May 2008 02:25:14 (GMT) |
| Detected by | All Sophos products |
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Action
- Summary
- Action
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Please follow the instructions for removing worms.
More Information
W32/Sohana-AX is a worm and backdoor Trojan which allows a remote intruder to gain access and control over the computer.
W32/Sohana-AX includes functionality to access the internet and communicate with a remote server via HTTP.
When first run W32/Sohana-AX copies itself to:
<Windows>\regsvr.exe
<System>\regsvr.exe
<System>\winhelp.exe
and creates the following files:
<System>\ijl11pro.dll - not malicious and can be safely removed
<System>\rundll.exe - detected as W32/Sohana-AX
<System>\setup.ini - detected as Troj/Agent-GXM
W32/Sohana-AX may install a new version of the file <System>\comctl32.ocx. This file is not malicious.
The following registry entry is created to run regsvr.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Yahoo Messengger
<System>\regsvr.exe
The following registry entries are changed to run winhelp.exe and rundll.exe on startup:
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Shell
Explorer.exe rundll.exe
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
System
Winhelp.exe
The following registry entry is set, disabling system software:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableRegistryTools
1
Registry entries are set as follows:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
NofolderOptions
0
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System
DisableTaskMgr
0
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