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SoftwareBundler:Win32/FakeDiX


First posted on 31 August 2015.
Source: Microsoft

Aliases :

There are no other names known for SoftwareBundler:Win32/FakeDiX.

Explanation :

Threat behavior

Installation

This threat claims to download DirectX.

It can create files on your PC, including:

  • %TEMP%\is-u2id6.tmp\_isetup\_shfoldr.dll
  • %TEMP%\is-u2id6.tmp\idp.dll


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

We have seen this threat connect to a remote host. 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


Downloads other malware

We have seen this threat download BrowserModifier:Win32/SupTab.



Additional information

Creates a mutex

This threat can create one or more mutexes on your PC. For example:

  • RstrMgr3887CAB8-533F-4C85-B0DC-3E5639F8D511
  • RstrMgr-3887CAB8-533F-4C85-B0DC-3E5639F8D511-Session0000


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 38f801cefb04cfbad2b6f76df54e698b5551b3f1.

Symptoms

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

  • You see a file similar to:
    • %TEMP%\is-u2id6.tmp\_isetup\_shfoldr.dll
    • %TEMP%\is-u2id6.tmp\idp.dll
  • You see the following mutex:
    • RstrMgr3887CAB8-533F-4C85-B0DC-3E5639F8D511
    • RstrMgr-3887CAB8-533F-4C85-B0DC-3E5639F8D511-Session0000

Last update 31 August 2015

 

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