TSPY_BANKER.UFA
Trojan.Win32.Jorik.Banload.bp (Kaspersky); Trojan horse Downloader.Banload.CNGQ (AVG)
Windows 2000, Windows XP, Windows Server 2003
![](/vinfo/imgFiles/legend.jpg)
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 creates the following folders:
- %System Root%\skype64x
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Autostart Technique
This spyware registers itself as a BHO to ensure its automatic execution every time Internet Explorer is used by adding the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Explorer\
Browser Helper Objects\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
Other System Modifications
This spyware deletes the following files:
- %System Root%\skype64x\mnvq5495DesBananaeD
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It adds the following registry keys:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
explorer
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Policies\System
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Policies\
Ext\CLSID
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0\
FLAGS
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0\
0
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0\
0\win32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0\
HELPDIR
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}\ProxyStubClsid
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}\ProxyStubClsid32
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}\TypeLib
HKEY_CLASSES_ROOT\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}\InprocServer32
HKEY_CLASSES_ROOT\NewSkype64.ClsNewSkype64
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
explorer
Publish = "Version64x"
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\
Microsoft\Windows\CurrentVersion\
Policies\System
EnableLUA = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\policies\
Ext\CLSID
{3AFE6263-F14B-4402-B4D1-3E23111879EC} = "1"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}\TypeLib
Version = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
ProgID = "NewSkype64.ClsNewSkype64"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}\InprocServer32
ThreadingModel = "Apartment"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
TypeLib = "{05A39CC7-56E6-4D64-9A40-F19A49278B04}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
VERSION = "1.0"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
NewSkype64.ClsNewSkype64
Clsid = "{3AFE6263-F14B-4402-B4D1-3E23111879EC}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
ProxyStubClsid = "{00020424-0000-0000-C000-000000000046}"
HKEY_LOCAL_MACHINE\SOFTWARE\Classes\
Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
ProxyStubClsid32 = "{00020424-0000-0000-C000-000000000046}"
Dropping Routine
This spyware drops the following files:
- %System Root%\skype64x\mnvq5495.dll
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
Other Details
This spyware connects to the following possibly malicious URL:
- http://aprendemaisbrasil.{BLOCKED}m.br/senac2.jpg
- http://omamore.{BLOCKED}m.br/mirela/recept.php
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
Close all opened browser windows
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_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion
- explorer
- In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies
- System
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Ext
- CLSID
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib
- {05A39CC7-56E6-4D64-9A40-F19A49278B04}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}
- 1.0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0
- FLAGS
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0
- 0
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0\0
- win32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib\{05A39CC7-56E6-4D64-9A40-F19A49278B04}\1.0
- HELPDIR
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface
- {2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- ProxyStubClsid
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- ProxyStubClsid32
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- TypeLib
- In HKEY_CLASSES_ROOT\CLSID
- {3AFE6263-F14B-4402-B4D1-3E23111879EC}
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
- InprocServer32
- In HKEY_CLASSES_ROOT
- NewSkype64.ClsNewSkype64
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_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\explorer
- Publish = "Version64x"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Policies\System
- EnableLUA = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Ext\CLSID
- {3AFE6263-F14B-4402-B4D1-3E23111879EC} = "1"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}\TypeLib
- Version = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
- ProgID = "NewSkype64.ClsNewSkype64"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}\InprocServer32
- ThreadingModel = "Apartment"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
- TypeLib = "{05A39CC7-56E6-4D64-9A40-F19A49278B04}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{3AFE6263-F14B-4402-B4D1-3E23111879EC}
- VERSION = "1.0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\NewSkype64.ClsNewSkype64
- Clsid = "{3AFE6263-F14B-4402-B4D1-3E23111879EC}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- ProxyStubClsid = "{00020424-0000-0000-C000-000000000046}"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Interface\{2883ED65-D0B4-4140-A965-3D21FFC6E78D}
- ProxyStubClsid32 = "{00020424-0000-0000-C000-000000000046}"
Step 5
Search and delete this file
- %System Root%\skype64x\mnvq5495.dll
Step 6
Search and delete this folder
- %System Root%\skype64x
Step 7
Scan your computer with your Trend Micro product to delete files detected as TSPY_BANKER.UFA. 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.
Step 8
Restore this file from backup only Microsoft-related files will be restored. If this malware/grayware also deleted files related to programs that are not from Microsoft, please reinstall those programs on you computer again.
- %System Root%\skype64x\mnvq5495DesBananaeD
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