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Threat Encyclopedia

TROJ_BREDOLAB.XY

ANALYSIS BY

Michael Cabel


PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type:Trojan

  • Destructiveness:No

  • Encrypted:

  • In the wild: Yes

OVERVIEW


This Trojan may be downloaded by other malware/grayware from remote sites.

TECHNICAL DETAILS

File Size:

249,856 bytes

File Type:

PE

Memory Resident:

Yes

Initial Samples Received Date:

23 Aug 2010

Arrival Details

This Trojan may be downloaded by the following malware/grayware from remote sites:

  • TROJ_DLDER.AU

It may be downloaded from the following remote sites:

  • http://{BLOCKED}.{BLOCKED}.112.3/outlook.exe

Autostart Technique

This Trojan adds the following registry entries to enable its automatic execution at every system startup:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
sniffer = {Malware Path And File Name}

Other Details

This Trojan does the following:

  • Uses WinPcap to monitor network traffic on affected system
  • May save captured packets in a file

SOLUTION

Minimum Scan Engine:

8.900

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 TROJ_BREDOLAB.XY

    TROJ_DLDER.AU

Step 3

Terminate a process file/s detected as TROJ_BREDOLAB.XY

[ Learn More ]

*Note: If the detected file/s is/are not displayed in theWindows Task Manager, continue doing the next steps.


Step 4

Delete this registry value

[ Learn More ]

Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.

  • In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • sniffer = {Malware Path and File Name}

Step 5

Scan your computer with your Trend Micro product to delete files detected as TROJ_BREDOLAB.XY. 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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