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Renamed Gpg.EXE Execution

Detects the execution of a renamed "gpg.exe". Often used by ransomware and loaders to decrypt/encrypt data.

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Nasreddine Bencherchali (Nextron Systems), François HubautCreated Wed Aug 09ec0722a3-eb5c-4a56-8ab2-bf6f20708592windows
Log Source
WindowsProcess Creation
ProductWindows← raw: windows
CategoryProcess Creation← raw: process_creation

Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.

Detection Logic
Detection Logic2 selectors
detection:
    selection:
        OriginalFileName: 'gpg.exe'
    filter_main_img:
        Image|endswith:
            - '\gpg.exe'
            - '\gpg2.exe'
    condition: selection and not 1 of filter_main_*
References
1
Resolving title…
securelist.com
MITRE ATT&CK
Rule Metadata
Rule ID
ec0722a3-eb5c-4a56-8ab2-bf6f20708592
Status
test
Level
high
Type
Detection
Created
Wed Aug 09
Author
Nasreddine Bencherchali (Nextron Systems), François Hubaut
Path
rules/windows/process_creation/proc_creation_win_renamed_gpg4win.yml
Raw Tags
attack.impactattack.t1486
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