TROJ_BANCOS.XCBC
Windows

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
217,088 bytes
EXE
No
06 Dec 2014
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.
Installation
This Trojan creates the following folders:
- %System Root%\pxa
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other System Modifications
This Trojan modifies the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{D5DE8D20-5BB8-11D1-A1E3-00A0C90F2731}\InProcServer32
ThreadingModel = "Apartment"
(Note: The default value data of the said registry entry is Apartment.)
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
VBRuntime
EventMessageFile = "%System%\msvbvm60.dll"
(Note: The default value data of the said registry entry is %Windows%\system32\MSVBVM60.DLL.)
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\
Services\Eventlog\Application\
VBRuntime
TypesSupported = "4"
(Note: The default value data of the said registry entry is 4.)
Dropping Routine
This Trojan drops the following files:
- %System Root%\pxa\SOUADMIN.ADM
- %System Root%\pxa\SENDED.ADM
- %System Root%\pxa\teraz.zip
(Note: %System Root% is the Windows root folder, where it usually is C:\ on all Windows operating system versions.)
Other Details
This Trojan connects to the following possibly malicious URL:
- http://{BLOCKED}2.127.187/~tabuaodaserra/sanfona.ooo
- http://www.{BLOCKED}nloads.com/deskr/avisos.php?IDMAQ=Wilbert&data=68AD0FD0
- {BLOCKED}.7.19
- {BLOCKED}0.1
This report is generated via an automated analysis system.
SOLUTION
9.700
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
Restore these modified registry values
Important:Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this only if you know how to or you can seek your system administrator's help. You may also check out this Microsoft article first before modifying your computer's registry.
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{D5DE8D20-5BB8-11D1-A1E3-00A0C90F2731}\InProcServer32
- From: ThreadingModel = "Apartment"
To: ThreadingModel = ""Apartment""
- From: ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\VBRuntime
- From: EventMessageFile = "%System%\msvbvm60.dll"
To: EventMessageFile = ""%Windows%\system32\MSVBVM60.DLL""
- From: EventMessageFile = "%System%\msvbvm60.dll"
- In HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\VBRuntime
- From: TypesSupported = "4"
To: TypesSupported = ""4""
- From: TypesSupported = "4"
Step 3
Search and delete these components
- %System Root%\pxa\SOUADMIN.ADM
- %System Root%\pxa\SENDED.ADM
- %System Root%\pxa\teraz.zip
Step 4
Search and delete this folder
- %System Root%\pxa
Step 5
Scan your computer with your Trend Micro product to delete files detected as TROJ_BANCOS.XCBC. 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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