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TROJ_BEDEP.YWA

June 10, 2015
 Analysis by: Sammy Chua
 ALIASES:

Backdoor:Win32/Bedep.A (Microsoft); Trojan.Bedep (Ikarus); Trojan.Win32.Yakes.krlt (Kaspersky)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan may arrive as a file that exports functions used by other malware. It may be dropped by other malware.

It is a component of other malware.

It requires its main component to successfully perform its intended routine.

  TECHNICAL DETAILS

File Size:

217,088 bytes

File Type:

DLL

Memory Resident:

Yes

Initial Samples Received Date:

05 Jun 2015

Arrival Details

This Trojan may arrive as a file that exports functions used by other malware.

It may be dropped by other malware.

Installation

This Trojan is a component of other malware.

Other Details

This Trojan requires its main component to successfully perform its intended routine.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

11.712.06

FIRST VSAPI PATTERN DATE:

05 Jun 2015

VSAPI OPR PATTERN File:

11.713.00

VSAPI OPR PATTERN Date:

06 Jun 2015

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

Scan your computer with your Trend Micro product and note files detected as TROJ_BEDEP.YWA

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Search and delete files detected as TROJ_BEDEP.YWA

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

Step 5

Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_BEDEP.YWA. 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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