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Recently my windows defender warned me about a possibly malicious program it found on my pc. I have trouble interpreting the data windows defender serves me and I haven't found any microsoft documentation regarding the processStart value.

The reports of windows defender are as following (my output is in dutch so I translated it to english):

1. Solution insufficient:

Detected: HackTool:Win32/Wpakill.AR!MTB

Status: Failure

This threat or this application may not be fully restored.

Date: 9-2-2022 20:01

Details: This program may show unwanted behaviour

Items involved: 

process: pid:7576,ProcessStart:132889069092372720

2. Threat removed or restored:

Detected: HackTool:Win32/Wpakill.AR!MTB

Status: Removed or returned

This threat or app has been deleted from quarantaine or restored to the computer


Date: 9-2-2022 20:01

Details: This program may show unwanted behaviour

Items involved:

process: pid:708,ProcessStart:132889068914364653

Now, putting "HackTool:Win32/Wpakill.AR!MTB" into google, the true severity of my problem remains a little vague. The actual payload may or may not have been ran. This may or may not have dangerous effects on your OS. However my computer does suffer from weird symptoms like slow startup time, random crashes, CPU spikes, slow application responses. This has been the case for several years now, despite my regular malwarebytes scans and CHKDSK operations, so it's a bit difficult to link this to any specific event.

I have traced the PIDS with tasklist.

tasklist /FI "PID eq 7576"
>>> no tasks are running with the specified criteria

tasklist /FI "PID eq 708"
>>> Imagename: SystemSettingsBroker.exe, PID: 708, Session: Console, Session#: 1, Mem usage: 29.324 K

Checking SystemSettingsBroker.exe file properties, it does indeed show to have the microsoft SHA-256 verified signature.

I have searched on google for:

  • Windows defender how to interprete startProcess
  • Windows defender startProcess
  • Windows defender item specification
  • Windows defender startProcess item specification

My interpretation of stuff I have found online leads me to believe that the processStart is an entry to an event. I opened my eventviewer and searched all the logs at the specified date from windows defender, but couldn't find any irregularities. Then I tried querying the logs for the entry id using:

wevtutil qe Application /q:132889069092372720
>>> None

wevtutil qe Security /q:132889069092372720
>>> None

wevtutil qe System /q:132889069092372720
>>>None

Highly probable that I am using these commands wrongly. However I fear I may be too unexperienced to trace this issue any further without help. Can anybody give me a hint about how to trace this magical value of processStart offered by windows defender?

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  • Or is this question better suited for superuser platform? -Sorry I am a bit new still Feb 16 at 12:57

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