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TROJ_BANCOS.USA30VC

October 12, 2012
 ALIASES:

TrojanSpy:Win32/Bancos.PI (Microsoft); PWS-Banker!gyy (McAfee); Infostealer.Bancos (Symantec); PAK:NTKrnl, Trojan-Banker.Win32.Banker.axtf (Kaspersky); Trojan-Banker.Win32.Banker (Sunbelt); Trojan.Generic.4451940 (FSecure)

 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

  TECHNICAL DETAILS

File Size:

347,648 bytes

File Type:

EXE

Memory Resident:

No

Initial Samples Received Date:

07 Apr 2012

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other System Modifications

This Trojan adds the following registry keys:

HKEY_CURRENT_USER\Software\Microsoft\
TwFIyPbP

It adds the following registry entries:

HKEY_CURRENT_USER\Software\Microsoft\
TwFIyPbP
ktMBNipX = "{random values}"

This report is generated via an automated analysis system.

  SOLUTION

Minimum Scan Engine:

9.200

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

Delete this registry key

[ 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_CURRENT_USER\Software\Microsoft
    • TwFIyPbP

Step 3

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_CURRENT_USER\Software\Microsoft\TwFIyPbP
    • ktMBNipX = "{random values}"

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_BANCOS.USA30VC. 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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