Sensitive browser credential files accessed by a rare non browser process

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2026-05-18
Category
Analytics Alert Reference
Index by
Alert name

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

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

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

Severity

Informational

Description

Sensitive browser credential files accessed by a rare non browser process.

Attacker's Goals

Achieve Credential Access by harvesting credentials from local browser storage.
This facilitates Lateral Movement and Persistence across the environment
to gain unauthorized control over sensitive resources and information.

Investigative actions

  • Determine the legitimacy of the actor process that accessed the sensitive browser credential files.
  • Analyze the process signature, file path, and command line arguments to verify the process's authenticity.
  • Identify the process or user responsible for initiating the activity and assess its legitimacy.

Variations

Sensitive browser credential files accessed by a rare non browser process from a commonly abused directory

Synopsis

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

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

Severity

Low

Description

Sensitive browser credential files accessed by a rare non browser process.

Attacker's Goals

Achieve Credential Access by harvesting credentials from local browser storage.
This facilitates Lateral Movement and Persistence across the environment
to gain unauthorized control over sensitive resources and information.

Investigative actions

  • Determine the legitimacy of the actor process that accessed the sensitive browser credential files.
  • Analyze the process signature, file path, and command line arguments to verify the process's authenticity.
  • Identify the process or user responsible for initiating the activity and assess its legitimacy.