Obfuscated Encoded PowerShell Payload Deployed via Process Execution (via process_creation)
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-08-31
- Updated
- 2026-08-31
ATT&CK techniques
Execution → Defense EvasionRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects deployed an encoded PowerShell payload via a process execution. Some parameters are commented in case you would like to reduce false positives or make the rule more precise.
Reporting behind it
- attack.mitre.orghttps://attack.mitre.org/techniques/T1059/003/
- attack.mitre.orghttps://attack.mitre.org/techniques/T1027/
- offensive-security.comhttps://www.offensive-security.com/metasploit-unleashed/psexec-pass-hash/
- fortinet.comhttps://www.fortinet.com/blog/threat-research/newly-discovered-function-in-darkside-ransomware-variant-targets-disk-partitions
- huntress.comhttps://www.huntress.com/blog/from-powershell-to-payload-an-analysis-of-weaponized-malware
- github.comhttps://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1569.002/T1569.002.md
- f5.comhttps://www.f5.com/labs/articles/threat-intelligence/vulnerabilities-exploits-and-malware-driving-attack-campaigns-in-october-2019
- crowdstrike.comhttps://www.crowdstrike.com/blog/getting-the-bacon-from-cobalt-strike-beacon/
- research.splunk.comhttps://research.splunk.com/endpoint/8acbc04c-c882-11eb-b060-acde48001122/
Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.
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