Home / malware Backdoor:W32/Bifrose.BGE
First posted on 02 November 2007.
Source: SecurityHomeAliases :
Backdoor:W32/Bifrose.BGE is also known as Backdoor.Win32.Bifrose.bge.
Explanation :
Backdoor:W32/Bifrose.BGE may arrive on the system as a drop file of other malware packages or may be downloaded from the Internet by other malware or unknowing users.
When Running, this malware will constantly connect to a remote site where it awaits commands from a remote user.
The text file is created on the user's Desktop as:
- 36146.txt
The main malware component is then dropped and executed in the system as:
- %My Documents%msnmsgr_plugin.exe
Once the control has been transfered, this malware then creates a copy of itself in the following folder:
- %Program Files%Microsoft Live
The copy is named MsnMsgr.exe with the file and folder attributes set to hidden.
A startup registry entry is then created:
- HKLMSoftwareMicrosoftActive Setup
Installed Components{B05ADB07-A675-7D8C-6914-85FBE370B83E}
stubpath=%Program Files%Microsoft LiveMsnMsgr.exe s
An additional registry entry is also created:
- HKLMSoftwaremsnmsgr
This entry holds data needed by this malware.
Once loaded in memory, this malware then injects its code to Explorer's process space where when executed, it will spawn a hidden browser process that will constantly connect to:
- Artkill.Dyndns.Org
TCP PORT 81
It then receives commands from the remote attacker and downloads other components that it needs.
When an Internet connection is detected, the malware will download an additional component to be saved as TORplugin.dat, which when configured, will provide basic stealth using the TOR network.
Last update 02 November 2007