Threat Description

Breplibot.AE

Details

Aliases: Breplibot.AE, Breplibot.AE
Category: Malware
Type: Backdoor
Platform: W32

Summary


Breplibot.AE is a backdoor with bot capabilities. It connects to several IRC servers and waits for commands from the backdoor author.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.



Technical Details


System installation

The backdoor's file is a PE executable about 30 kilobytes long, packed with UPX file compressor.When the backdoor's file is started, it copies itself as 'svcsvh32.exe' file to Windows System folder and then tries to create the following startup key values in the Registry:

  • [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
  • [HKLM\Software\Microsoft\Windows\CurrentVersion\Run] "WindowsDiskE" = "svcsvh32.exe"
Bot functionality

When the backdoor is active, it connects to an IRC server, and joins a certain channel then acts as a bot there.The following IRC servers and ports are used by the backdoor:

  • 152.7.4.74:8080
  • 161.6.23.28:8080
  • 170.140.216.236:8080
  • 170.140.240.82:8080
  • 128.119.60.144:8080

The backdoor joins the following password-protected IRC channel:

  • #info

A hacker can send commands to the bots to control infected computers. Several tasks can be performed, including the following:

  • - Download and execute files from remote servers
  • - Request system information
  • - Delete files
Payload

Breplibot.AE tries to terminate several security-related processes.



Detection




Detection Type: PC
Database: 2006-02-01_02




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