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How can I delete this CoinMiner Malware that keeps reinstalling after removal?

Anonymous
2023-10-10T10:58:12+00:00

Windows Defender alerts malware CoinMiner.I on reboot stating it was been deleted. I am assuming it's reinstalling from another process and have been trying to track it down. This is the alert that I am getting.

Detected: Behavior:Win32/CoinMiner.I

Status: Removed

A threat or app was removed from this device.

Date: 10/10/2023 5:02 AM

Details: This program is dangerous and executes commands from an attacker.

Affected items:

behavior: process: C:\Windows\explorer.exe, pid:31584:120617923854497

process: pid:31584,ProcessStart:133414021413529505

After doing some google searching. I've installed Sysmon, Autoruns and Farbar Recovery Scan Tool looking for malicious processes.

My logs are here: FRST Logs

I looked up the terminated process ID above in Sysmon. The info follows.

Process Create:

RuleName: -

UtcTime: 2023-10-10 09:02:21.352

ProcessGuid: {acbf227a-131d-6525-da01-000000000d00}

ProcessId: 31584

Image: C:\Windows\explorer.exe

FileVersion: 10.0.22621.2361 (WinBuild.160101.0800)

Description: Windows Explorer

Product: Microsoft® Windows® Operating System

Company: Microsoft Corporation

OriginalFileName: EXPLORER.EXE

CommandLine: C:\WINDOWS\explorer.exe oaiwgjimtkhew0 6E3sjfZq2rJQaxvLPmXgsEwWTFCy3QOzHJaQOQ3/NEUE+I3bbyzjNI/1t5Yu7Sup8Rog9vQ+Ti3UCDf+NiXvhd3YQ2VEwoL2DsYUUjm29tpOtDCok8LlwxkP6h9eCpmL0+k8DrZqrBNYfISW2IvXi1utDC0t3M9xin2uk3s/dZw7AAMwn8yCx265sVLxL6lSb9AhWduReVVk7b2XhQMKdj31UJzOvlrJ55cz9X70Uq/Qnhdq62TnsonYHADA1JaM4ckfz4EAbJViQn9ZsOL1ZUdZqsEjpQAs4BRRAly7Jg5s264pdSlWlQRRqifrQNI7oaOkQh0JLo/5K9fkg/i1btTa1GKcoI05+E90fv0R240jMhz93FZeeF/hYYaca1xTag3azKv+KDuZ8zqQkKqdQTD1BQlXi7sAjhrrEqV6Lk/mnvenBCrNFz0TC/fsStyXrKBJCRv3Gr8+s82klS39iYBKV3Yg8cM1lOmqnzjdX3w=

CurrentDirectory: C:\WINDOWS\

User: NT AUTHORITY\SYSTEM

LogonGuid: {acbf227a-12c1-6525-e703-000000000000}

LogonId: 0x3E7

TerminalSessionId: 0

IntegrityLevel: System

Hashes: SHA256=0B25D56BD2B4D8A6DF45BEFF7BE165117FBF7BA6BA2C07744F039143866335E4

ParentProcessGuid: {acbf227a-12c7-6525-f700-000000000d00}

ParentProcessId: 9608

ParentImage: C:\Program Files\WindowsMalwareProtection\config\systemreset.exe

ParentCommandLine: "C:\Program Files\WindowsMalwareProtection\config\systemreset.exe" 

ParentUser: NT AUTHORITY\SYSTEM

Followed by a termination of systemreset.exe as follows.

Process terminated:

RuleName: -

UtcTime: 2023-10-10 09:02:22.209

ProcessGuid: {acbf227a-12c7-6525-f700-000000000d00}

ProcessId: 9608

Image: C:\Program Files\WindowsMalwareProtection\config\systemreset.exe

User: NT AUTHORITY\SYSTEM

Since it shows systemreset.exe is the parent to the explorer.exe process with a large command line addition, I assume this my problem file? From the googling I have done systemreset.exe appears to be an actual system file, since it's 1.4GB in size as well. I'm unsure of where to go from here. Should I just delete that file?

Windows for home | Windows 11 | Security and privacy

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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Answer accepted by question author
  1. Ramesh 176.1K Reputation points Volunteer Moderator
    2023-10-10T11:08:33+00:00
    • Download FixList.txt
    • Save Fixlist.txt in the same folder where FRST64.exe is.
    • Close all program windows.
    • Launch the Farbar Scanner tool and click "Fix".
    • Upload the output log file (FixLog.txt) to your OneDrive.
    1 person found this answer helpful.
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2 additional answers

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  1. Ramesh 176.1K Reputation points Volunteer Moderator
    2023-10-10T17:13:44+00:00

    You're most welcome.

    Regards,

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  2. Anonymous
    2023-10-10T15:43:01+00:00

    Fixlog_10-10-2023 11.38.31.txt

    Thank you for the help!

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