Home / malwarePDF  

TrojanDownloader:AutoIt/Kilim.C


First posted on 20 May 2015.
Source: Microsoft

Aliases :

There are no other names known for TrojanDownloader:AutoIt/Kilim.C.

Explanation :

Threat behavior

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

  • %SystemRoot%\serviceprofiles\localservice\appdata\local\lastalive1.dat
  • %ProgramData% \microsoft\rac\statedata\racmetadata.dat
  • %ProgramData% \microsoft\rac\statedata\racwmidatabookmarks.dat
  • %ProgramData% \microsoft\rac\statedata\racwmieventdata.dat
  • %APPDATA% \roaming\nbcer.dll


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



Payload


Downloads malware or unwanted software

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



Connects to a remote host

We have seen this threat connect to a remote host, including:
  • ge.tt using port 80
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:

  • {86ae57ff-4758-466d-b54d-498f74ff6c76}:sqlce_se_lck:1
  • {add75eff-109d-43d5-b395-64ba8a9099eb}:sqlce_se_lck:1
  • {bf07a3ff-6070-4f26-a91d-736152160539}:sqlce_se_lck:1


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 c3a851d76522f2882e2cf65c7b2282db1df7d362.

Symptoms

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

  • You see a file similar to:
    • %SystemRoot%\serviceprofiles\localservice\appdata\local\lastalive1.dat
    • %ProgramData%\microsoft\rac\statedata\racmetadata.dat
    • %ProgramData%\microsoft\rac\statedata\racwmidatabookmarks.dat
    • %ProgramData%\microsoft\rac\statedata\racwmieventdata.dat
    • %APPDATA%\roaming\nbcer.dll
  • You see the following mutex:
    • {86ae57ff-4758-466d-b54d-498f74ff6c76}:sqlce_se_lck:1
    • {add75eff-109d-43d5-b395-64ba8a9099eb}:sqlce_se_lck:1
    • {bf07a3ff-6070-4f26-a91d-736152160539}:sqlce_se_lck:1

Last update 20 May 2015

 

TOP

Malware :

Family: