First Time Seen Command Line Argument

Description

This search looks for command-line arguments that use a /c parameter to execute a command that has not previously been seen.

Content Mapping

This content is not mapped to any local saved search. Add mapping


Use Case

Advanced Threat Detection

Category

Adversary Tactics

Alert Volume

This search looks for command-line arguments that use a `/c` parameter to execute a command that has not previously been seen.

SPL Difficulty

None

Journey

Stage 3

MITRE ATT&CK Tactics

Execution
Execution

MITRE ATT&CK Techniques

Command and Scripting Interpreter
Command and Scripting Interpreter

PowerShell
Windows Command Shell

MITRE Threat Groups

APT1
APT18
APT19
APT28
APT29
APT3
APT32
APT33
APT37
APT38
APT39
APT41
BRONZE BUTLER
Blue Mockingbird
Chimera
Cobalt Group
CopyKittens
Dark Caracal
DarkHydrus
DarkVishnya
Darkhotel
Deep Panda
Dragonfly 2.0
FIN10
FIN6
FIN7
FIN8
Frankenstein
Gallmaker
Gamaredon Group
Gorgon Group
Honeybee
Inception
Ke3chang
Kimsuky
Lazarus Group
Leviathan
Magic Hound
Molerats
MuddyWater
OilRig
Patchwork
Poseidon Group
Rancor
Silence
Soft Cell
Sowbug
Stealth Falcon
Suckfly
TA459
TA505
TEMP.Veles
Threat Group-1314
Threat Group-3390
Thrip
Tropic Trooper
Turla
WIRTE
Wizard Spider
admin@338
menuPass

Kill Chain Phases

Command and Control
Actions On Objectives

Data Sources

Endpoint Detection and Response

   Help

First Time Seen Command Line Argument Help

You must be ingesting data that records process activity from your hosts to populate the Endpoint data model in the Processes node. You must be ingesting logs with both the process name and command line from your endpoints. The complete process name with command-line arguments are mapped to the "process" field in the Endpoint data model. Please make sure you run the support search "Previously seen command line arguments,"—which creates a lookup file called previously_seen_cmd_line_arguments.csv—a historical baseline of all command-line arguments. You must also validate this list. For the search to do accurate calculation, ensure the search scheduling is the same value as the relative_time evaluation function.

   Search

Open in Search