Detectionmediumtest
Perl Inline Command Execution
Detects execution of perl using the "-e"/"-E" flags. This is could be used as a way to launch a reverse shell or execute live perl code.
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Launch
Nasreddine Bencherchali (Nextron Systems)Created Mon Jan 02f426547a-e0f7-441a-b63e-854ac5bdf54dwindows
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_img:
- Image|endswith: '\perl.exe'
- OriginalFileName: 'perl.exe' # Also covers perlX.XX.exe
selection_cli:
CommandLine|contains: ' -e'
condition: all of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
f426547a-e0f7-441a-b63e-854ac5bdf54d
Status
test
Level
medium
Type
Detection
Created
Mon Jan 02
Path
rules/windows/process_creation/proc_creation_win_perl_inline_command_execution.yml
Raw Tags
attack.executionattack.t1059