Unsigned and unpopular process performed a DLL injection

Cortex XDR Analytics Alert Reference by Alert name

Product

Cortex XDR

Last date published

2025-01-19

Synopsis

Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires: XDR Agent
Detection Modules
Detector Tags	Injection Analytics
ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	Low

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.

Variations

Unsigned and unpopular process performed process hollowing DLL injection

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	High

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.

Unsigned and unpopular process performed queue APC DLL injection

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	High

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.

Unsigned and unpopular process performed a DLL injection to a sensitive process

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	Medium

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.

Unsigned and unpopular process performed a DLL injection to a commonly abused process

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	High

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.

Unsigned and unpopular process performed a DLL injection to a security vendor signed process

Synopsis

ATT&CK Tactic	Defense Evasion (TA0005)
ATT&CK Technique	Process Injection (T1055)
Severity	Medium

Description

An unsigned process with low popularity injected a dll to another process.

Attacker's Goals

Attackers may inject DLLs into processes to evade process-based defenses, as well as possibly elevate privileges.

Investigative actions

Check whether the injecting process is benign, and if this was a desired behavior as part of its normal execution flow.