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TrojanDropper:MSIL/Suloc.A!bit


First posted on 30 December 2016.
Source: Microsoft

Aliases :

There are no other names known for TrojanDropper:MSIL/Suloc.A!bit.

Explanation :

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

  • %ProgramFiles%\microsoft\skype.exe
  • %TEMP%\file_protected.exe


It modifies the registry so that it runs each time you start your PC. For example:

In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Sets value: "Skype"
With data: ""%TEMP%\file_protected.exe""

This threat can make changes to scheduled tasks on your PC, including:
  • Launching tasks
  • Creating tasks
  • Deleting tasks


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

Payload

Installs malware or unwanted software

This trojan can install other malware or unwanted software onto your PC.

Connects to a remote host

We have seen this threat connect to a remote host, including:
  • api.ipify.org using port 80
  • freegeoip.net using port 80
  • ip-api.com 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 a mutex on your PC. For example:
  • QSR_MUTEX_x2pIrs17X4caqlNyqr


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 e1d08f6e003723fd8fb248649a4e836ba815804d.

Last update 30 December 2016

 

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