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TrojanDownloader:MSIL/Beldex.A

First posted on 07 August 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:MSIL/Beldex.A.

Explanation :

Threat behavior

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

• %LOCALAPPDATA%\temp\nssd.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:

• www.job-securite.fr 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:

• b1.exe

This malware description was published using automated analysis of file SHA1 da8e43eedbfeb9fc5b3af4ebdec180ee0dc6002d.

Symptoms

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

• You see a file similar to:
  • %LOCALAPPDATA%\temp\nssd.exe

Last update 07 August 2015

 

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