ENTERPRISE MOBILE PRE-ATT&CK
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  4. Process Discovery

Process Discovery

Adversaries may attempt to get information about running processes on a system. Information obtained could be used to gain an understanding of common software running on systems within the network. Adversaries may use the information from Process Discovery during automated discovery to shape follow-on behaviors, including whether or not the adversary fully infects the target and/or attempts specific actions.

Windows

An example command that would obtain details on processes is "tasklist" using the Tasklist utility.

Mac and Linux

In Mac and Linux, this is accomplished with the ps command.

ID: T1057
Tactic: Discovery
Platform: Linux, macOS, Windows
System Requirements: Administrator, SYSTEM may provide better process ownership details
Permissions Required: User, Administrator, SYSTEM
Data Sources: Process monitoring, Process command-line parameters
CAPEC ID: CAPEC-573
Version: 1.1

Procedure Examples

Name Description
4H RAT

4H RAT has the capability to obtain a listing of running processes (including loaded modules).[85]
ADVSTORESHELL

ADVSTORESHELL can list running processes.[45]
Agent Tesla

Agent Tesla lists the current running processes on the system.[53]
APT1

APT1 gathered a list of running processes on the system using tasklist /v.[111]
APT28

An APT28 loader Trojan will enumerate the victim's processes searching for explorer.exe if its current process does not have necessary permissions.[34]
APT3

APT3 has a tool that can list out currently running processes.[114][115]
APT37

APT37's Freenki malware lists running processes using the Microsoft Windows API.[109]
APT38

APT38 leveraged Sysmon to understand the processes, services in the organization.[112]
Astaroth

Astaroth searches for different processes on the system.[97]
Azorult

Azorult can collect a list of running processes by calling CreateToolhelp32Snapshot.[60][61]
BabyShark

BabyShark has executed the tasklist command. [107]
Backdoor.Oldrea

Backdoor.Oldrea collects information about running processes.[13]
BACKSPACE

BACKSPACE may collect information about running processes.[14]
Bankshot

Bankshot identifies processes and collects the process ids.[42]
BBSRAT

BBSRAT can list running processes.[23]
BISCUIT

BISCUIT has a command to enumerate running processes and identify their owners.[71]
Bisonal

Bisonal can obtain a list of running processes on the victim’s machine.[35]
BLACKCOFFEE

BLACKCOFFEE has the capability to discover processes.[57]
BlackEnergy

BlackEnergy has gathered a process list by using Tasklist.exe.[32][33]
Brave Prince

Brave Prince lists the running processes.[52]
Cannon

Cannon can obtain a list of processes running on the system.[27][28]
Carbanak

Carbanak lists running processes.[31]
Carbon

Carbon can list the processes on the victim’s machine.[66]
Cardinal RAT

Cardinal RAT contains watchdog functionality that ensures its process is always running, else spawns a new instance.[72]
ChChes

ChChes collects its process identifier (PID) on the victim.[58]
Cobalt Strike

Cobalt Strike's "beacon" payload can collect information on process details.[2]
Comnie

Comnie uses the tasklist to view running processes on the victim’s machine.[8]
Crimson

Crimson contains a command to list processes.[40]
DarkComet

DarkComet can list active processes running on the victim’s machine.[65]
Darkhotel

Darkhotel has searched for anti-malware strings and anti-virus processes running on the system.[125]
Deep Panda

Deep Panda uses the Microsoft Tasklist utility to list processes running on systems.[117]
Derusbi

Derusbi collects current and parent process IDs.[43][44]
Duqu

The discovery modules used with Duqu can collect information on process details.[82]
DustySky

DustySky collects information about running processes from victims.[12]
Elise

Elise enumerates processes via the tasklist command.[62]
ELMER

ELMER is capable of performing process listings.[17]
Emotet

Emotet has been observed enumerating local processes.[96]
Empire

Empire can find information about processes running on local and remote systems.[6]
Epic

Epic uses the tasklist /v command to obtain a list of processes.[69][70]
EvilBunny

EvilBunny has used EnumProcesses() to identify how many process are running in the environment.[103]
FELIXROOT

FELIXROOT collects a list of running processes.[78]
Final1stspy

Final1stspy obtains a list of running processes.[79]
FinFisher

FinFisher checks its parent process for indications that it is running in a sandbox setup.[83][84]
FruitFly

FruitFly has the ability to list processes on the system.[22]
Fysbis

Fysbis can collect information about running processes. [106]
GeminiDuke

GeminiDuke collects information on running processes and environment variables from the victim.[29]
gh0st RAT

gh0st RAT has the capability to list processes.[89]
Gold Dragon

Gold Dragon checks the running processes on the victim’s machine.[52]
GravityRAT

GravityRAT lists the running processes on the system.[50]
HALFBAKED

HALFBAKED can obtain information about running processes on the victim.[68]
Helminth

Helminth has used Tasklist to get information on processes.[34]
Honeybee

Honeybee gathers a list of processes using the tasklist command and then is sent back to the control server.[110]
Hydraq

Hydraq creates a backdoor through which remote attackers can monitor processes.[54][55]
iKitten

iKitten lists the current processes running.[22]
InvisiMole

InvisiMole obtains a list of running processes.[10]
Ixeshe

Ixeshe can list running processes.[101]
JHUHUGIT

JHUHUGIT obtains a list of running processes on the victim.[86][87]
JPIN

JPIN can list running processes.[7]
jRAT

jRAT can query and kill system processes.[98]
Kasidet

Kasidet has the ability to search for a given process name in processes currently running in the system.[92]
Kazuar

Kazuar obtains a list of running processes through WMI querying and the ps command.[37]
Ke3chang

Ke3chang performs process discovery using tasklist commands.[118][119]
KEYMARBLE

KEYMARBLE can obtain a list of running processes on the system.[21]
Komplex

The OsInfo function in Komplex collects a running process list.[74]
Kwampirs

Kwampirs collects a list of running services with the command tasklist /v.[41]
Lazarus Group

Several Lazarus Group malware families gather a list of running processes on a victim system and send it to their C2 server. A Destover-like variant used by Lazarus Group also gathers process times.[120][121][122][39]
Linfo

Linfo creates a backdoor through which remote attackers can retrieve a list of running processes.[80]
Machete

Machete has a component to check for running processes to look for web browsers. [104]
Magic Hound

Magic Hound malware can list running processes.[126]
MobileOrder

MobileOrder has a command to upload information about all running processes to its C2 server.[67]
Molerats

Molerats actors obtained a list of active processes on the victim and sent them to C2 servers.[12]
MoonWind

MoonWind has a command to return a list of running processes.[75]
Mosquito

Mosquito runs tasklist to obtain running processes.[19]
MuddyWater

MuddyWater has used malware to obtain a list of running processes on the system.[127]
NavRAT

NavRAT uses tasklist /v to check running processes.[30]
NETEAGLE

NETEAGLE can send process listings over the C2 channel.[14]
OceanSalt

OceanSalt can collect the name and ID for every process running on the system.[26]
OilRig

OilRig has run tasklist on a victim's machine.[108]
Orz

Orz can gather a process list from the victim.[20]
Pasam

Pasam creates a backdoor through which remote attackers can retrieve lists of running processes.[51]
PLAINTEE

PLAINTEE performs the tasklist command to list running processes.[36]
PlugX

PlugX has a module to list the processes running on a machine.[15]
POORAIM

POORAIM can enumerate processes.[16]
Poseidon Group

After compromising a victim, Poseidon Group lists all running processes.[116]
PowerDuke

PowerDuke has a command to list the victim's processes.[18]
PowerSploit

PowerSploit's Get-ProcessTokenPrivilege Privesc-PowerUp module can enumerate privileges for a given process.[3][4]
PowerStallion

PowerStallion has been used to monitor process lists.[102]
POWRUNER

POWRUNER may collect process information by running tasklist on a victim.[25]
Proxysvc

Proxysvc lists processes running on the system.[39]
Pupy

Pupy can list the running processes and get the process ID and parent process’s ID.[1]
RATANKBA

RATANKBA lists the system’s processes.[46][47]
Remsec

Remsec can obtain a process list from the victim.[81]
RogueRobin

RogueRobin checks the running processes for evidence it may be running in a sandbox environment. It specifically enumerates processes for Wireshark and Sysinternals.[77]
ROKRAT

ROKRAT lists the current running processes on the system.[64]
RTM

RTM can obtain information about process integrity levels.[9]
Seasalt

Seasalt has a command to perform a process listing.[71]
SHOTPUT

SHOTPUT has a command to obtain a process listing.[11]
Socksbot

Socksbot can list all running processes.[88]
Stealth Falcon

Stealth Falcon malware gathers a list of running processes.[124]
StreamEx

StreamEx has the ability to enumerate processes.[73]
Sykipot

Sykipot may gather a list of running processes by running tasklist /v.[38]
SynAck

SynAck enumerates all running processes.[48][49]
Tasklist

Tasklist can be used to discover processes running on a system.[5]
Trojan.Karagany

Trojan.Karagany can use tasklist to collect a list of running tasks.[13]
Tropic Trooper

Tropic Trooper enumerates the running processes on the system.[123]
Turla

Turla surveys a system upon check-in to discover running processes using the tasklist /v command. Turla RPC backdoors have also enumerated processes associated with specific open ports or named pipes.[69][102]
UBoatRAT

UBoatRAT can list running processes on the system.[24]
Ursnif

Ursnif has gathered information about running processes.[99][100]
VERMIN

VERMIN can get a list of the processes and running tasks on the system.[59]
Volgmer

Volgmer can gather a list of processes.[63]
WINERACK

WINERACK can enumerate processes.[16]
WinMM

WinMM sets a WH_CBT Windows hook to collect information on process creation.[90]
Winnti Group

Winnti Group looked for a specific process running on infected servers.[113]
XAgentOSX

XAgentOSX contains the getProcessList function to run ps aux to get running processes.[56]
yty

yty gets an output of running processes using the tasklist command.[76]
Zebrocy

Zebrocy uses the tasklist and wmic process get Capture, ExecutablePath commands to gather the processes running on the system.[27][93][28][94][95]
Zeus Panda

Zeus Panda checks for running processes on the victim’s machine.[91]
ZxShell

ZxShell has a command, ps, to obtain a listing of processes on the system. [105]

Mitigations

This type of attack technique cannot be easily mitigated with preventive controls since it is based on the abuse of system features.

Detection

System and network discovery techniques normally occur throughout an operation as an adversary learns the environment. Data and events should not be viewed in isolation, but as part of a chain of behavior that could lead to other activities, such as Lateral Movement, based on the information obtained.

Normal, benign system and network events that look like process discovery may be uncommon, depending on the environment and how they are used. Monitor processes and command-line arguments for actions that could be taken to gather system and network information. Remote access tools with built-in features may interact directly with the Windows API to gather information. Information may also be acquired through Windows system management tools such as Windows Management Instrumentation and PowerShell.

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