TSPY_BANKER.SMUA
TrojanDownloader:Win32/Banload.AKS (Microsoft); PWS-Banker!hdd (McAfee); Downloader (Symantec); Trojan.Win32.Generic.pak!cobra (Sunbelt); Gen:Variant.Barys.1980 (FSecure)
Windows 2000, Windows XP, Windows Server 2003
Threat Type: Spyware
Destructiveness: No
Encrypted:
In the wild: Yes
OVERVIEW
This spyware 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
Arrival Details
This spyware 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 spyware drops the following copies of itself into the affected system:
- %Application Data%\Temp\kripton.exe
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
It creates the following folders:
- %Application Data%\Temp
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
Autostart Technique
This spyware adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
LiveSp2 = "%Application Data%\{1MOMG~1\vq1dkkqp34.exe"
Other System Modifications
This spyware adds the following registry keys:
HKEY_CURRENT_USER\SOFTWARE\Microsoft\
Windows\IComplemento
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\IComplemento
LiveSp2 = "0.2"
HKEY_CURRENT_USER\Software\Microsoft\
Windows\IComplemento
LiveSp2CM = "%Application Data%\{1MOMG~1\vq1dkkqp34.exe"
Dropping Routine
This spyware drops the following files:
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}\vq1dkkqp34.exe
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}\nichan.exe
- %Application Data%\{1MOMG~1\libmysql41.dll
(Note: %Application Data% is the current user's Application Data folder, which is usually C:\Documents and Settings\{user name}\Application Data on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Roaming on Windows Vista and 7.)
Other Details
This spyware connects to the following possibly malicious URL:
- http://leonardovicmend.{BLOCKED}2.f1.k8.com.br/atmp.zip
- http://paulosgmj.{BLOCKED}9.f1.k8.com.br/membros.php
- http://leonardovicmend.{BLOCKED}2.f1.k8.com.br/nichan.zip
This report is generated via an automated analysis system.
SOLUTION
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
Restart in Safe Mode
Step 3
Delete this registry key
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\Windows
- IComplemento
Step 4
Delete this registry value
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\Windows\CurrentVersion\Run
- LiveSp2 = "%Application Data%\{1MOMG~1\vq1dkkqp34.exe"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\IComplemento
- LiveSp2 = "0.2"
- In HKEY_CURRENT_USER\Software\Microsoft\Windows\IComplemento
- LiveSp2CM = "%Application Data%\{1MOMG~1\vq1dkkqp34.exe"
Step 5
Search and delete these components
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}\vq1dkkqp34.exe
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}\nichan.exe
- %Application Data%\{1MOMG~1\libmysql41.dll
Step 6
Search and delete these folders
- %Application Data%\Temp
- %Application Data%\{1MOMGYNF-O7I1-YOLO-7BB8-HSEVSQF4GTBM}
Step 7
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TSPY_BANKER.SMUA. 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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