Unusual process accessed web browser credentials

Cortex XDR Analytics Alert Reference by data source

Product
Cortex XDR
Last date published
2024-12-03
Category
Analytics Alert Reference
Order
data source

Synopsis

Activation Period

14 Days

Training Period

30 Days

Test Period

N/A (single event)

Deduplication Period

1 Day

Required Data

  • Requires:
    • XDR Agent with eXtended Threat Hunting (XTH)

Detection Modules

Detector Tags

Credentials Grabbing Analytics

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

Credentials from Password Stores: Credentials from Web Browsers (T1555.003)

Severity

Informational

Description

An unusual process has accessed a web browser credentials file.

Attacker's Goals

Obtain access to credentials (such as cached logins) stored in the web browser.

Investigative actions

  • Determine whether it is legitimate for the process to access web browser credential data directly.
  • Analyze the process/application that accessed the credentials.
  • Check for any other suspicious actions that were performed by the process.
  • Look for unusual access to resources using credentials cached in the web browser.

Variations

Unusual process accessed web browser credentials and executed by a terminal process

Synopsis

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

Credentials from Password Stores: Credentials from Web Browsers (T1555.003)

Severity

High

Description

An unusual process has accessed a web browser credentials file.

Attacker's Goals

Obtain access to credentials (such as cached logins) stored in the web browser.

Investigative actions

  • Determine whether it is legitimate for the process to access web browser credential data directly.
  • Analyze the process/application that accessed the credentials.
  • Check for any other suspicious actions that were performed by the process.
  • Look for unusual access to resources using credentials cached in the web browser.


Unusual unsigned process accessed web browser credentials

Synopsis

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

Credentials from Password Stores: Credentials from Web Browsers (T1555.003)

Severity

Low

Description

An unusual process has accessed a web browser credentials file.

Attacker's Goals

Obtain access to credentials (such as cached logins) stored in the web browser.

Investigative actions

  • Determine whether it is legitimate for the process to access web browser credential data directly.
  • Analyze the process/application that accessed the credentials.
  • Check for any other suspicious actions that were performed by the process.
  • Look for unusual access to resources using credentials cached in the web browser.