high
Summary
Summary
Action- More Information
| How it spreads |
|
|---|---|
| Affected operating systems | Windows |
| Characteristics |
|
| Protection available since | 21 February 2006 14:43:05 (GMT) |
| Last updated | 22 February 2006 10:00:52 (GMT) |
| Detected by | All Sophos products |
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Action
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More Information
W32/Opanki-AR is a worm and IRC backdoor Trojan for the Windows platform.
W32/Opanki-AR runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels.
When first run W32/Opanki-AR copies itself to <System>\l071.exe and creates the following files:
<System>\msdirectx.sys
<System>\svkp.sys
\xz.bat
The file xz.bat is detected as Troj/KillProc-A and the file msdirectx.sys is detected as Troj/NtRootK-F.
The following registry entries are created to run l071.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
strtas
l071.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
strtas
l071.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
strtas
l071.exe
The file msdirectx.sys is registered as a new system driver service named "msdirectx", with a display name of "msdirectx". Registry entries are created under:
HKLM\SYSTEM\CurrentControlSet\Services\msdirectx\
The following registry entries are set, affecting internet security:
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
FirewallPolicy\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile\
HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
FirewallPolicy\StandardProfile
EnableFirewall
0
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