Home / malware

PDF

TrojanDownloader:Win32/Brucryp.D

First posted on 08 October 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:Win32/Brucryp.D.

Explanation :

Threat behavior

Installation


It modifies the registry so that it runs each time you start your PC. For example:

In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Run
Sets value: "CryptoUpdate"
With data: "\regsvr32.exe /s "%CurrentFolder%\malware.dll""


Payload


Downloads malware or unwanted software

This threat can download other malware and unwanted software onto your PC.



Additional information

Creates a mutex

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

• ipcinprocsync
• ipcsynctrth

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 04ea94572217a5c360cde759f8c3db2e68661005.

Symptoms

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

• You see registry modifications such as:
  
  • In subkey: HKCU\Software\Microsoft\Windows\CurrentVersion\Run
    Sets value: "CryptoUpdate"
    With data: "\regsvr32.exe /s "%CurrentFolder%\malware.dll""

• You see the following mutex:
  • ipcinprocsync
  • ipcsynctrth

Last update 08 October 2015

 

TOP