COINMINER.WIN32.TEVEPLUGS.THAOODAH
HEUR:Trojan.MSIL.Miner.gen (Kaspersky), MSIL/CoinMiner.AQZ!tr (Fortinet)
Windows
Threat Type: Coinminer
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Coinminer arrives as an attachment to email messages spammed by other malware/grayware or malicious users. It arrives as a component bundled with malware/grayware packages.
TECHNICAL DETAILS
Arrival Details
This Coinminer arrives as an attachment to email messages spammed by other malware/grayware or malicious users.
It arrives as a component bundled with malware/grayware packages.
Installation
This Coinminer drops and executes the following files:
- %User Temp%\zip.exe ← Coinminer.MSIL.MALXMR.THAOODAH
- %User Temp%\leer.vbs ← Worm.VBS.Dunihi.TVP
- %User Temp%\Tv-Plug-In.exe
- %User Temp%\__tmp_rar_sfx_access_check_36139816
- %User Temp%\iisfcgi.dll
- %User Temp%\iisfreb.dll
- %User Temp%\iisreqs.dll
- %User Temp%\iisres.dll
- %User Temp%\iisRtl.dll
- %User Temp%\iisutil2.dll
- %User Temp%\iisvermg.dll
- %User Temp%\iiswsock.dll
- %User Temp%\iprestr.dll
- %User Temp%\browscap.ini
- %User Temp%\iisexpress.exe
- %User Temp%\IisExpressAdminCmd.exe
- %User Temp%\iisexpresstray.exe
- %User Temp%\authanon.dll
- %User Temp%\authbas.dll
- %User Temp%\authcert.dll
- %User Temp%\authmap.dll
- %User Temp%\authsspi.dll
- %User Temp%\browscap.dll
- %User Temp%\cachtokn.dll
- %User Temp%\IisExpressadminCmd.resources.dll
- %User Temp%\iisexpresshelper.dll
- %User Temp%\iisexpresstray.dll
- %User Temp%\IisExpressAdminCmd.exe.config
- %User Temp%\iisexpress.exe.manifest
- %User Temp%\iisexpressshim.sdb
- %User Temp%\nsb78C8.tmp\welcome.bmp
- %User Temp%\nsb78C8.tmp\header.bmp
- %User Temp%\nsb78C8.tmp\Eula.txt
- %User Temp%\nsb78C8.tmp\nsDialogs.dll
- %User Temp%\nsb78C8.tmp\System.dll
- %User Startup%\leer.vbs ← Worm.VBS.Dunihi.TVP
It adds the following processes:
- %System%\WScript.exe "%User Temp%\leer.vbs"
- %User Temp%\zip.exe
(Note: %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, 7, and 8.)
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
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
Search and delete these files
- %User Temp%\__tmp_rar_sfx_access_check_36139816
- %User Temp%\Tv-Plug-In.exe
- %User Temp%\zip.exe
- %User Temp%\leer.vbs
- %User Temp%\iisfcgi.dll
- %User Temp%\iisfreb.dll
- %User Temp%\iisreqs.dll
- %User Temp%\iisres.dll
- %User Temp%\iisRtl.dll
- %User Temp%\iisutil2.dll
- %User Temp%\iisvermg.dll
- %User Temp%\iiswsock.dll
- %User Temp%\iprestr.dll
- %User Temp%\browscap.ini
- %User Temp%\iisexpress.exe
- %User Temp%\IisExpressAdminCmd.exe
- %User Temp%\iisexpresstray.exe
- %User Temp%\authanon.dll
- %User Temp%\authbas.dll
- %User Temp%\authcert.dll
- %User Temp%\authmap.dll
- %User Temp%\authsspi.dll
- %User Temp%\browscap.dll
- %User Temp%\cachtokn.dll
- %User Temp%\IisExpressadminCmd.resources.dll
- %User Temp%\iisexpresshelper.dll
- %User Temp%\iisexpresstray.dll
- %User Temp%\IisExpressAdminCmd.exe.config
- %User Temp%\iisexpress.exe.manifest
- %User Temp%\iisexpressshim.sdb
- %User Temp%\nsb78C8.tmp\welcome.bmp
- %User Temp%\nsb78C8.tmp\header.bmp
- %User Temp%\nsb78C8.tmp\Eula.txt
- %User Temp%\nsb78C8.tmp\nsDialogs.dll
- %User Temp%\nsb78C8.tmp\System.dll
- %User Startup%\leer.vbs
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as COINMINER.WIN32.TEVEPLUGS.THAOODAH. 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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