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TrojanProxy:MSIL/Utafajax.A

First posted on 05 October 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanProxy:MSIL/Utafajax.A.

Explanation :

Threat behavior

Installation
This threat can create files with random file names on your PC, including:

• %APPDATA%\bm3jx34xsbrnbseu\10aavslg03tc.exe
• %APPDATA%\bm3jx34xsbrnbseu\obcyofbvxxlm.exe
• %ProgramData%\tfjxala\pgycv.exe

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



Payload


Connects to a remote host

Malware can connect to a remote host to do any of the following:

• Check for an Internet connection
• Check for the geolocation of the infected system

It can stop some processes from running on your PC, including:

• PgYcv.exe

Additional information

Creates a mutex

This threat can create a mutex on your PC. For example:

• VnyuwlpUJ

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 b369149c4fc0fe32d2d8e5a50f2c065514efbe14.

Symptoms

The following can indicate that you have this threat on your PC:

• You see a file similar to:
  • %APPDATA%\bm3jx34xsbrnbseu\10aavslg03tc.exe
  • %APPDATA%\bm3jx34xsbrnbseu\obcyofbvxxlm.exe
  • %ProgramData%\tfjxala\pgycv.exe

• You see the following mutex:
  • VnyuwlpUJ

Last update 05 October 2015

 

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