high
Summary
Summary
Action- More Information
| Affected operating systems | Windows |
|---|---|
| Characteristics |
|
| Protection available since | 8 December 2006 14:39:09 (GMT) |
| Detected by | All Sophos products |
Free virus scan
- Free virus, spyware, and adware scan
- Test your existing anti-virus protection
- Find threats your anti-virus missed
Action
- Summary
- Action
- More Information
Please follow the instructions for removing worms.
More Information
W32/Bifrose-PN is a worm with IRC backdoor functionality for the Windows
platform.
W32/Bifrose-PN 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/Bifrose-PN copies itself to <System>\drive.exe and creates
the file <System>\drivers\oreans32.sys.
oreans32.sys is a clean device driver and can be removed.
The following registry entries are created to run drive.exe on startup:
HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Microsoft Update
drive.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Microsoft Update
drive.exe
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices
Microsoft Update
drive.exe
The file oreans32.sys is registered as a new system driver service named
"oreans32", with a display name of "oreans32". Registry entries are created
under:
HKLM\SYSTEM\CurrentControlSet\Services\oreans32
|
