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TrojanDownloader:JS/Nemucod

First posted on 02 April 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:JS/Nemucod.

Explanation :

Threat behavior

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

• %TEMP%\1246549.exe
• %TEMP%\2865241.exe

Payload


Downloads malware or unwanted software

This threat can download other malware and unwanted software onto your PC. We have seen it download the following threats:

• PWS:Win32/Fareit
• Ransom:Win32/Crowti.A

Connects to a remote host

We have seen this threat connect to a remote host, including:

• davis1.ru 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:

• two.jpg
• one.jpg

This malware description was published using automated analysis of file SHA1 6f8db4ab8debc3ae1ae7d8139daa659e97ee3bb4.

Symptoms

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

• You see a file similar to:
  • %TEMP%\1246549.exe
  • %TEMP%\2865241.exe

• The presence of a mutex such as:
  • GOOGLEUPDATE.EXE"

Last update 02 April 2015

 

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