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TrojanDownloader:Win32/Banload.BGK


First posted on 30 April 2016.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:Win32/Banload.BGK.

Explanation :

Installation
This threat can create files on your PC, including:

  • %APPDATA%\microsoft\internet explorer\quick launch\user pinned\taskbar\mozilla firefox.lnk
  • %APPDATA%\mozilla\firefox\profiles\ng54gdj7.default\sessionstore-backups\recovery.js
  • %APPDATA%\mozilla\firefox\profiles\ng54gdj7.default\pluginreg.dat
  • %APPDATA%\mozilla\firefox\profiles\ng54gdj7.default\prefs.js


It can make various registry changes during its installation, including:

In subkey: HKLM\Software\Mozilla\Firefox\TaskBarIDs
Sets value: "%ProgramFiles%\Mozilla Firefox"
With data: "308046b0af4a39cb"

The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.

Payload

Downloads malware or unwanted software

This threat can download other malware and unwanted software onto your PC.

Connects to a remote host

We have seen this threat connect to a remote host, including:
  • location.services.mozilla.com using port 443
  • tiles.services.mozilla.com using port 443
  • self-repair.mozilla.org using port 443
  • aus4.mozilla.org using port 53
  • s23.postimg.org using port 80
  • www.uol.com.br using port 80
Malware can connect to a remote host to do any of the following:
  • Check for an Internet connection
  • Download and run files (including updates or other malware)
  • Report a new infection to its author
  • Receive configuration or other data
  • Receive instructions from a malicious hacker
  • Search for your PC location
  • Upload information taken from your PC
  • Validate a digital certificate


Additional information

Creates a mutex

This threat can create one or more mutexes on your PC. For example:
  • {C20CD437-BA6D-4ebb-B190-70B43DE3B0F3}
  • LAPTOP-PC
  • MozillaUpdateMutex-aeVcDEW6vlSu+PLYtSFCvWhPsG0=


It might use this mutex as an infection marker to prevent more than one copy of the threat running on your PC.

This malware description was published using automated analysis of file SHA1 b429a5d46d57370d2c346c9c6315b793517e84f0.

Last update 30 April 2016

 

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