TROJ_CIUSKY.NJZ
Trojan.Win32.Generic!BT (Sunbelt)
Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)
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
1,354,906 bytes
EXE
No
05 Sep 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%\Documents and Settings\Wilbert
- %User Profile%\hkhs7na75
- %User Profile%\10.0\Forms
- %User Profile%\10.0\Collab
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.)
Other System Modifications
This Trojan deletes the following files:
- %User Profile%\10.0\ReaderMessages-journal
- %Application Data%\Adobe\Acrobat\10.0\SharedDataEvents-journal
(Note: %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %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 adds the following registry keys:
HKEY_CURRENT_USER\Software\Adobe\
Adobe Acrobat\10.0
HKEY_CURRENT_USER\Software\Adobe\
Adobe Synchronizer\10.0
HKEY_LOCAL_MACHINE\System\Acrobatbrokerserverdispatchercpp789
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Installer\
Migrated
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Originals
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\AVGeneral
HKEY_CURRENT_USER\Software\Adobe\
Adobe Synchronizer\10.0\Acrobat.com
HKEY_CURRENT_USER\Software\Adobe\
Adobe Synchronizer\10.0\Acrobat.com.v2
HKEY_CURRENT_USER\Software\Adobe\
Adobe Acrobat\10.0\DiskCabs
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter\cSettings
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution\cSettings
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
HKEY_LOCAL_MACHINE\Software\Adobe\
Acrobat Reader\10.0\AdobeViewer
It adds the following registry entries:
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Installer\
Migrated
{AC76BA86-7AD7-1033-7B44-AA0000000001} = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Originals
bDisplayedSplash = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\AVGeneral
bLastExitNormal = "0"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
bAlwaysUseServer = "0"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
bAlwaysUseServerFD = "0"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
bDefault = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
bDefaultFD = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
tDistMethod = "UPLOAD"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter\cSettings
tcSetting = "https://api.{BLOCKED}e.acrobat.com"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
tUI = "Acrobat.com (Recommended)"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cDocumentCenter
tURL = "urn://ns.{BLOCKED}e.com/Collaboration/SharedReview/Acrobat.com"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
bAlwaysUseServerFD = "0"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
bDefaultFD = "0"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
tDistMethod = "EMAIL"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
tUI = "Manually collect responses in my email inbox"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cEmailDistribution
tURL = "urn://ns.{BLOCKED}e.com/Collaboration/Forms/Email"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
bIsFirstLaunchER = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
bIsFirstLaunchFD = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
bIsFirstLaunchSF = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
bIsFirstLaunchSR = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\Collab\
cInitiationWizardFirstLaunch
bIsFirstLaunchUF = "1"
HKEY_CURRENT_USER\Software\Adobe\
Adobe Acrobat\10.0\DiskCabs
bForms_AdhocWorkflowBackup = "0"
HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\
Acrobat Reader\10.0\AdobeViewer
EULA = "1"
HKEY_CURRENT_USER\Software\Adobe\
Acrobat Reader\10.0\AdobeViewer
EULA = "1"
Dropping Routine
This Trojan drops the following files:
- __tmp_rar_sfx_access_check_69296
- QWBWbw.GCD
- QteAeSo.exe
- IJankMHpRILc.GID
- WcJXQDUqV.BFC
- product_orderform.pdf
- %Application Data%\Adobe\Color\ACECache11.lst
- %User Profile%\10.0\Forms
- %User Profile%\10.0\Collab
- %Application Data%\Adobe\Acrobat\10.0\UserCache.bin
- %User Temp%\A9RFBAE.tmp
(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.. %User Profile% is the current user's profile folder, which is usually C:\Documents and Settings\{user name} on Windows 2000, XP, and Server 2003, or C:\Users\{user name} on Windows Vista and 7.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, XP, and Server 2003, or C:\Users\{user name}\AppData\Local\Temp on Windows Vista and 7.)
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
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\Adobe\Adobe Acrobat
- 10.0
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Synchronizer
- 10.0
- In HKEY_LOCAL_MACHINE\System
- Acrobatbrokerserverdispatchercpp789
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Installer
- Migrated
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0
- Originals
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0
- AVGeneral
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Synchronizer\10.0
- Acrobat.com
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Synchronizer\10.0
- Acrobat.com.v2
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\10.0
- DiskCabs
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0
- Collab
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab
- cDocumentCenter
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- cSettings
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab
- cEmailDistribution
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- cSettings
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab
- cInitiationWizardFirstLaunch
- In HKEY_LOCAL_MACHINE\Software\Adobe\Acrobat Reader\10.0
- AdobeViewer
Step 3
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\Adobe\Acrobat Reader\10.0\Installer\Migrated
- {AC76BA86-7AD7-1033-7B44-AA0000000001} = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Originals
- bDisplayedSplash = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\AVGeneral
- bLastExitNormal = "0"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- bAlwaysUseServer = "0"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- bAlwaysUseServerFD = "0"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- bDefault = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- bDefaultFD = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- tDistMethod = "UPLOAD"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter\cSettings
- tcSetting = "https://api.{BLOCKED}e.acrobat.com"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- tUI = "Acrobat.com (Recommended)"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cDocumentCenter
- tURL = "urn://ns.{BLOCKED}e.com/Collaboration/SharedReview/Acrobat.com"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- bAlwaysUseServerFD = "0"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- bDefaultFD = "0"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- tDistMethod = "EMAIL"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- tUI = "Manually collect responses in my email inbox"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cEmailDistribution
- tURL = "urn://ns.{BLOCKED}e.com/Collaboration/Forms/Email"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cInitiationWizardFirstLaunch
- bIsFirstLaunchER = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cInitiationWizardFirstLaunch
- bIsFirstLaunchFD = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cInitiationWizardFirstLaunch
- bIsFirstLaunchSF = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cInitiationWizardFirstLaunch
- bIsFirstLaunchSR = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\Collab\cInitiationWizardFirstLaunch
- bIsFirstLaunchUF = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Adobe Acrobat\10.0\DiskCabs
- bForms_AdhocWorkflowBackup = "0"
- In HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Acrobat Reader\10.0\AdobeViewer
- EULA = "1"
- In HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\10.0\AdobeViewer
- EULA = "1"
Step 4
Search and delete these components
- __tmp_rar_sfx_access_check_69296
- QWBWbw.GCD
- QteAeSo.exe
- IJankMHpRILc.GID
- WcJXQDUqV.BFC
- product_orderform.pdf
- %Application Data%\Adobe\Color\ACECache11.lst
- %User Profile%\10.0\Forms
- %User Profile%\10.0\Collab
- %Application Data%\Adobe\Acrobat\10.0\UserCache.bin
- %User Temp%\A9RFBAE.tmp
Step 5
Search and delete these folders
- %System Root%\Documents and Settings\Wilbert
- %User Profile%\hkhs7na75
- %User Profile%\10.0\Forms
- %User Profile%\10.0\Collab
Step 6
Scan your computer with your Trend Micro product to delete files detected as TROJ_CIUSKY.NJZ. 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 7
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.
- %User Profile%\10.0\ReaderMessages-journal
- %Application Data%\Adobe\Acrobat\10.0\SharedDataEvents-journal
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