Detectionhighexperimental
HackTool - HollowReaper Execution
Detects usage of HollowReaper, a process hollowing shellcode launcher used for stealth payload execution through process hollowing. It replaces the memory of a legitimate process with custom shellcode, allowing the attacker to execute payloads under the guise of trusted binaries.
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Launch
Swachchhanda Shrawan Poudel (Nextron Systems)Created Tue Jul 0185d23b42-9a9d-4f8f-b3d7-d2733c1d58f5windows
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 Logic1 selector
detection:
selection:
Image|endswith: '\HollowReaper.exe'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
References
MITRE ATT&CK
Sub-techniques
Rule Metadata
Rule ID
85d23b42-9a9d-4f8f-b3d7-d2733c1d58f5
Status
experimental
Level
high
Type
Detection
Created
Tue Jul 01
Path
rules/windows/process_creation/proc_creation_win_hktl_hollowreaper.yml
Raw Tags
attack.privilege-escalationattack.defense-evasionattack.t1055.012