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TrojanProxy:BAT/Dafterdod.F

First posted on 27 March 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanProxy:BAT/Dafterdod.F.

Explanation :

Threat behavior

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

• %ProgramFiles%\house\dorm\crypts.exe
• %ProgramFiles%\house\dorm\instagramm.bat
• %ProgramFiles%\house\dorm\uninstall.exe

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

In subkey: HKLM\software\microsoft\windows\currentversion\run
Sets value: "Dorm"
With data: "%ProgramFiles%\house\dorm\crypts.exe"



The malware uses code injection to make it harder to detect and remove. It can inject code into running processes.



Payload


Creates an uninstaller



This threat can create an uninstaller by modifying the registry. For example:

In subkey: HKLM\software\microsoft\windows\currentversion\uninstall\dorm 1.4 Sets value: "DisplayName"
With data: "dorm 1.4"

Additional information

Creates a mutex

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

• Global\Mp6c3Ygukx29GbDk
• sITPSxqgNkbX

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 38534bc3178f4a2c1fe4a742a070e354cb885ec2.

Symptoms

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

• You see a file similar to:
  • %ProgramFiles%\house\dorm\crypts.exe
  • %ProgramFiles%\house\dorm\instagramm.bat
  • %ProgramFiles%\house\dorm\uninstall.exe
• You see registry modifications such as:
• In subkey: HKLM\software\microsoft\windows\currentversion\run
  Sets value: "Dorm"
  With data: "%ProgramFiles%\house\dorm\crypts.exe"
  
  
• In subkey: HKLM\software\microsoft\windows\currentversion\uninstall\dorm 1.4
  Sets value: "DisplayName"
  With data: "dorm 1.4"
  
  
• The presence of a mutex such as:
  • Global\Mp6c3Ygukx29GbDk
  • sITPSxqgNkbX

Last update 27 March 2015

 

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