Home / malware

PDF

TrojanDownloader:MSIL/Pstinb.J

First posted on 20 November 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:MSIL/Pstinb.J.

Explanation :

Threat behavior

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

• %TEMP%\rarsfx0\functions.dll
• %TEMP%\rarsfx0\geoip.dat
• %TEMP%\rarsfx0\proxy multiply.exe
• %TEMP%\rarsfx0\win32.exe

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:

• proxy.jrimsoftware.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

We have seen this threat access online content, including:

• Functions.dll
• GeoIP.dat

This malware description was published using automated analysis of file SHA1 e17ab411afdc22f3d04b9616c0a3850901492cc9.

Symptoms

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

• You see a file similar to:
  • %TEMP%\rarsfx0\functions.dll
  • %TEMP%\rarsfx0\geoip.dat
  • %TEMP%\rarsfx0\proxy multiply.exe
  • %TEMP%\rarsfx0\win32.exe

Last update 20 November 2015

 

TOP