Worm.Win32.MALXMR.TIAOODFW
Generic.Application.CoinMiner.1.F8C53C97 (BITDEFENDER); Win64:CoinminerX-gen [Trj] (AVAST)
Windows

Threat Type: Worm
Destructiveness: No
Encrypted: Yes
In the wild: Yes
OVERVIEW
This Worm 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 Worm 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 Worm drops the following files:
- {Malware Directory}\Packet.dll
- {Malware Directory}\wpcap.dll
- %User Temp%\npf.sys
- %User Temp%\.{Random Characters}\[kthreaddi].exe -> xmrig
- %User Temp%\.{Random Characters}\config.json -> xmrig config
(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(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
It adds the following processes:
- %System%\cmd.exe /c "sc stop npf"
- %System%\cmd.exe /c "sc delete npf"
- %System%\cmd.exe /c "sc create npf type= kernel start= auto binpath= %User Temp%\npf.sys"
- %System%\cmd.exe /c "sc start npf"
- route print 0.0.0.0
- %System%\cmd.exe /c start %User Temp%\.{Random Characters}\[kthreaddi].exe
(Note: %System% is the Windows system folder, where it usually is C:\Windows\System32 on all Windows operating system versions.. %User Temp% is the current user's Temp folder, which is usually C:\Documents and Settings\{user name}\Local Settings\Temp on Windows 2000(32-bit), XP, and Server 2003(32-bit), or C:\Users\{user name}\AppData\Local\Temp on Windows Vista, 7, 8, 8.1, 2008(64-bit), 2012(64-bit) and 10(64-bit).)
Process Termination
This Worm terminates the following processes if found running in the affected system's memory:
- apaceha.exe
- apachiii.exe
- cpuset.exe
- crond64.exe
- cryptonight.exe
- devtool.exe
- devtools.exe
- haveged.exe
- irqbalanc1.exe
- jawa.exe
- kdevtmpfsi.exe
- kinsing.exe
- ksoftirqds.exe
- kthrotlds.exe
- kworker34.exe
- kworkerds.exe
- linux32.exe
- Loopback.exe
- miner-cpu.exe
- miner-notls.exe
- miner.exe
- minerd.exe
- minergate.exe
- mixnerdx.exe
- monerohash.exe
- mstxmr.exe
- nanoWatch.exe
- netdns.exe
- nginxk.exe
- nqscheduler.exe
- nullcrew.exe
- performedl.exe
- phpguard.exe
- phpupdate.exe
- pnscan.exe
- pythno.exef
- redis2.exe
- solrd.exe
- sourplum.exe
- stratum.exe
- suppoie.exe
- sustse.exe
- sustse3.exe
- svcguard.exe
- svcupdate.exe
- svcupdates.exe
- sysguard.exe
- sysstats.exe
- systemctI.exe
- systemten.exe
- systemxlv.exe
- sysupdate.exe
- vmlinuz.exe
- voltuned.exe
- watchbog.exe
- watchd0g.exe
- watchdogs.exe
- xmr-stak.exe
Other Details
This Worm does the following:
- It uses the following default details on its coin mining routine (from config.json):
- Algo: rx/0
- Url: xmr-eu1.nanopool.org:14444
- User: 49dnvYkWkZNPrDj3KF8fR1BHLBfiVArU6Hu61N9gtrZWgbRptntwht5JUrXX17ZeofwPwC6fXNxPZfGjNEChXttwWE3EGUEa.W
- Password: x
- If exploitation is successful, connects to the following URL to download and execute a malicious file:
- http://{BLOCKED}.{BLOCKED}.227.21
- It may use the following exploits to aid its propagation:
- XXL-JOB unauthorized access
- WebLogic Unauthorized Access (CVE-2020-14882)
- ThinkPhp5Rce
- Hadoop unauthorized access
- Jupyter unauthorized access
- Nexus unauthorized access
- Tomcat unauthorized access
- WordPress unauthorized access
- Jenkins RCE
- CVE-2017-11610
- CVE-2019-10758
- CVE-2020-16846
- CVE-2021-3129
- It scans the following ports to be used in exploitation and propagation:
- 8088
- 8081
- 7001
- 9001
- It uses the following credentials to bruteforce a system:
- Username:
- admin1234
- admin@123
- Admin@123
- admin
- Admin123
- mfgproadmin
- root
- test
- user
- tomcat
- Username:
- Password:
- 12345678
- 123456
- Admin123
- P@ssw0rd
- admin123
- password
- admin
- tomcat
- root
- test
- user
- secret
- tomcat123
- oracle
- Wordpress
- Tomcat
- Nexus
- Jupyter
- Jenkins
SOLUTION
Step 1
Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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 this file
- {Malware Directory}\Packet.dll
- {Malware Directory}\wpcap.dll
- %User Temp%\npf.sys
- %User Temp%\.{Random Characters}\[kthreaddi].exe
- %User Temp%\.{Random Characters}\config.json
Step 5
Restart in normal mode and scan your computer with your Trend Micro product for files detected as Worm.Win32.MALXMR.TIAOODFW. 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.
Did this description help? Tell us how we did.