Sigma rule: CobaltStrike Malleable (OCSP) Profile

A detection rule from the SigmaHQ repository, shown as its author published it. Dataset version ref-078bfcace199, updated 2024-02-15T00:00:00.000Z.

SigmaHQ marks this rule as deprecated.

Rule

Title
CobaltStrike Malleable (OCSP) Profile
Status
deprecated
Level
high
Author
Markus Neis
Date
2019/11/12
Modified
2024/02/15
File
deprecated/web/proxy_cobalt_ocsp.yml
Commit
ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects Malleable (OCSP) Profile with Typo (OSCP) in URL

Log source

category
proxy

Detection

selection:
    c-uri|contains: '/oscp/'
    cs-host: 'ocsp.verisign.com'
condition: selection

False positives (as the rule lists them)

  • Unknown

Tags

  • attack.defense_evasion
  • attack.command_and_control
  • attack.t1071.001

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/deprecated/web/proxy_cobalt_ocsp.yml

Sources and licences

  • SigmaHQ

    "CobaltStrike Malleable (OCSP) Profile" by Markus Neis (SigmaHQ). Rule: https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/deprecated/web/proxy_cobalt_ocsp.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: CobaltStrike Malleable (OCSP) Profile",
entity page, dataset version ref-078bfcace199, updated 2024-02-15T00:00:00.000Z,
https://ransomware-tracker.com/detections/sigma/37325383-740a-403d-b1a2-b2b4ab7992e7 (accessed 2026-11-03).
Underlying source: SigmaHQ rule 37325383-740a-403d-b1a2-b2b4ab7992e7, 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.