➔
search
close

RTKT_RAMNIT.KC

May 01, 2013
 Analysis by: Mark Joseph Manahan
 ALIASES:

Trojan:WinNT/Ramnit.gen!a (Microsoft), Hacktool.Rootkit (Symantec), Generic.dx!zw (McAfee)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan may be dropped by other malware.

It exports functions used by other malware.

  TECHNICAL DETAILS

File Size:

15,360 bytes

File Type:

SYS

Memory Resident:

Yes

Initial Samples Received Date:

03 Dec 2012

Arrival Details

This Trojan may be dropped by other malware.

Other Details

This Trojan exports functions used by other malware.

NOTES:
It hooks the following APIs to perform its intended routine.

  • ZwCreateKey
  • ZwCreateKeyTransacted
  • ZwOpenKey
  • ZwOpenKeyEx
  • ZwOpenKeyTransacted
  • ZwOpenKeyTransactedEx

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

8.566.03

FIRST VSAPI PATTERN DATE:

03 Dec 2012

VSAPI OPR PATTERN File:

8.567.00

VSAPI OPR PATTERN Date:

03 Dec 2012

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Remove the malware/grayware file that dropped/downloaded RTKT_RAMNIT.KC

Step 3

Restart in normal mode and scan your computer with your Trend Micro product for files detected as RTKT_RAMNIT.KC. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.


Did this description help? Tell us how we did.