Sigma rule: Potential QBot Activity

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-c71d01bdff6d, updated 2023-02-03T00:00:00.000Z.

Rule

Title
Potential QBot Activity
Status
stable
Level
critical
Author
Florian Roth (Nextron Systems)
Date
2019-10-01
Modified
2023-02-03
File
rules-emerging-threats/2019/Malware/QBot/proc_creation_win_malware_qbot.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects potential QBot activity by looking for process executions used previously by QBot

Log source

product
windows
category
process_creation

Detection

selection1:
    ParentImage|endswith: '\WinRAR.exe'
    Image|endswith: '\wscript.exe'
selection2:
    CommandLine|contains: ' /c ping.exe -n 6 127.0.0.1 & type '
selection3:
    CommandLine|contains|all:
        - 'regsvr32.exe'
        - 'C:\ProgramData'
        - '.tmp'
condition: 1 of selection*

False positives (as the rule lists them)

  • Unlikely

Tags

  • attack.execution
  • attack.t1059.005
  • detection.emerging-threats

MITRE ATT&CK ids this rule names

References

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2019/Malware/QBot/proc_creation_win_malware_qbot.yml

Sources and licences

  • SigmaHQ

    "Potential QBot Activity" by Florian Roth (Nextron Systems) (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules-emerging-threats/2019/Malware/QBot/proc_creation_win_malware_qbot.yml.
    Licensed under the Detection Rule License (DRL) 1.1: https://github.com/SigmaHQ/Detection-Rule-License

    Detection Rule License (DRL) 1.1

Cite this page

Dragons Eye Ransomware Tracker, "Sigma rule: Potential QBot Activity",
entity page, dataset version ref-c71d01bdff6d, updated 2023-02-03T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/4fcac6eb-0287-4090-8eea-2602e4c20040 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 4fcac6eb-0287-4090-8eea-2602e4c20040, commit ccbb0369507f796db0b0ae6854c8a2be471b9d84.

Pages change. The dataset version identifies the data, but no archive of old versions is kept, so this citation cannot be replayed later.