Analysis by: Roland Marco Dela Paz

ALIASES:

Microsoft : Worm:Win32/Verst.B; Kaspersky : Trojan.Win32.Agent2.luh

 PLATFORM:

Windows 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:
 SYSTEM IMPACT RATING:
 INFORMATION EXPOSURE:

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

This Trojan may be dropped by other malware.

It exports functions used by other malware.

  TECHNICAL DETAILS

Tamaño del archivo 23,552 bytes
Tipo de archivo DLL
Residente en memoria No
Fecha de recepción de las muestras iniciales 16 Feb 2011

Arrival Details

This Trojan may be dropped by the following malware:

  • WORM_AUTORUN.ZLK

Rootkit Capabilities

This Trojan is used by other malware for its rootkit functionalities.

Other Details

This Trojan exports functions used by other malware.

It does the following:

  • Its rootkit capabilities enables it to hide processes and files of its mother component.

  SOLUTION

Motor de exploración mínimo 8.900
Archivo de patrones de VSAPI 07.838.12
Fecha de publicación de patrones de VSAPI 16 Feb 2011
Fecha de publicación de patrones de VSAPI 2/16/2011 12:00:00 AM

Step 1

For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.

Step 2

Remove malware files dropped/downloaded by RTKT_VERST.ZLK

Step 3

Scan your computer with your Trend Micro product and note files detected as RTKT_VERST.ZLK

Step 4

Restart in Safe Mode

[ Learn More ]

Step 5

Search and delete the file detected as RTKT_VERST.ZLK

[ Learn More ]
Please make sure you check the Search Hidden Files and Folders checkbox in the More advanced options option to include all hidden files in the search result.


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