Analysis by: Mark Joseph Manahan
ALIASES:

W32/Tvido-B (Sophos) ,Win32/Tvido (AVG) ,W32/Tvido.A (Fortinet) ,W32/Tvido.A (Fprot) ,Virus.Win32.Tvido.a (Kaspersky) ,Virus:Win32/Tvido.gen!B (Microsoft) ,W32/Tvido (McAfee) ,Win32/Tvido.A virus (Eset) ,W32/Tvido.A (Panda) ,Virus.Win32.Tvido.a (v) (Sunbelt)

 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:
 INFORMATION EXPOSURE:

  • Threat Type: File infector

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This file infector may be dropped by other malware.

It creates an infection marker in infected files.

  TECHNICAL DETAILS

File Size: 118,841 bytes
File Type: EXE
Memory Resident: Yes
Initial Samples Received Date: 22 Dec 2009

Arrival Details

This file infector may be dropped by other malware.

This malware arrives via the following means:

  • Infected by PE_TVIDO.E

File Infection

This file infector infects the following files:

  • .exe

It creates an infection marker in infected files.

This is the Trend Micro detection for files infected by:

  • PE_TVIDO.E

  SOLUTION

Minimum Scan Engine: 9.700
FIRST VSAPI PATTERN FILE: 6.710.05
FIRST VSAPI PATTERN DATE: 22 Dec 2009

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

Identify and terminate files detected as PE_TVIDO.E

[ Learn More ]
  1. Windows Task Manager may not display all running processes. In this case, please use a third-party process viewer, preferably Process Explorer, to terminate the malware/grayware/spyware file. You may download the said tool here.
  2. If the detected file is displayed in either Windows Task Manager or Process Explorer but you cannot delete it, restart your computer in safe mode. To do this, refer to this link for the complete steps.
  3. If the detected file is not displayed in either Windows Task Manager or Process Explorer, continue doing the next steps.

Step 3

Scan your computer with your Trend Micro product to delete files detected as PE_TVIDO.E. 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.


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