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TrojanSpy:Win32/Ursnif.HI

First posted on 07 January 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanSpy:Win32/Ursnif.HI.

Explanation :

Threat behavior

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

• %SystemRoot%\uzubgbqd.dll

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: "gjszmhqr"
With data: "rundll32 "%SystemRoot%\uzubgbqd.dll",register"



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



Payload


Collects your sensitive information

This threat can collect your sensitive information without your consent. This can include:

• The keys you press
• Your web browsing history
• Your credit card information
• Your user names and passwords

It could also imitate a legitimate website to lure you into revealing your sensitive information.



Additional information

Creates a mutex

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

• {01C3C1DA-A771-7A1C-CBAE-35102FC23944}
• {27DCD55A-A4F1-599C-4B2E-B590AF42B9C4}

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 615453ccc421f8cf11532119b50e2e128597e4c6.Symptoms

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

• You see these files:
  • %SystemRoot%\uzubgbqd.dll

• You see registry modifications such as:
  
  • In subkey: HKCU\software\microsoft\windows\currentversion\run
    Sets value: "gjszmhqr"
    With data: "rundll32 "%SystemRoot%\uzubgbqd.dll",register"
    
    

• You see a mutex such as:
  • {01C3C1DA-A771-7A1C-CBAE-35102FC23944}
  • {27DCD55A-A4F1-599C-4B2E-B590AF42B9C4}

Last update 07 January 2015

 

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