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TrojanSpy:BAT/Ursnif.A

First posted on 09 July 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanSpy:BAT/Ursnif.A.

Explanation :

Threat behavior

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

• %APPDATA% \local\microsoft\internet explorer\recovery\high\active\{ed1d1541-5fdf-11e3-a8d3-00155d003a71}.dat
• %APPDATA% \local\microsoft\internet explorer\recovery\high\active\recoverystore.{ed1d1540-5fdf-11e3-a8d3-00155d003a71}.dat
• %APPDATA% \roaming\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk
• cmd.bat
• md5.exe
• unrar.exe

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
• The applications you open
• Your web browsing history
• Your credit card information
• Your user names and passwords

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



Connects to a remote host

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

• www.inps.it using port 445

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

Additional information

Creates a mutex

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

• !BrowserEmulation!SharedMemory!Mutex
• !appdata!local!microsoft!feeds cache!
• !appdata!local!microsoft!windows!history!history.ie5!
• !appdata!roaming!microsoft!windows!cookies!
• !appdata!roaming!microsoft!windows!ietldcache!
• ConnHashTable<3964>_HashTable_Mutex
• CSM Policy Key Mutex
• Feeds Store Mutex S-1-5-21-3383749062-2246846829-375697490-500
• IESQMMUTEX_0_208
• RSS Eventing Connection Database Mutex 00000f7c

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 e9857040cfb19b1fd259343900ad3f4cbfc5b390.

Symptoms

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

• You see a file similar to:
  • %APPDATA%\local\microsoft\internet explorer\recovery\high\active\{ed1d1541-5fdf-11e3-a8d3-00155d003a71}.dat
  • %APPDATA%\local\microsoft\internet explorer\recovery\high\active\recoverystore.{ed1d1540-5fdf-11e3-a8d3-00155d003a71}.dat
  • %APPDATA%\roaming\microsoft\internet explorer\quick launch\launch internet explorer browser.lnk
  • cmd.bat
  • md5.exe
  • unrar.exe

• You see the following mutex:
  • !BrowserEmulation!SharedMemory!Mutex
  • !appdata!local!microsoft!feeds cache!
  • !appdata!local!microsoft!windows!history!history.ie5!
  • !appdata!roaming!microsoft!windows!cookies!
  • !appdata!roaming!microsoft!windows!ietldcache!
  • ConnHashTable<3964>_HashTable_Mutex
  • CSM Policy Key Mutex
  • Feeds Store Mutex S-1-5-21-3383749062-2246846829-375697490-500
  • IESQMMUTEX_0_208
  • RSS Eventing Connection Database Mutex 00000f7c

Last update 09 July 2015

 

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