A user created a pfx file for the first time

Cortex XDR Analytics Alert Reference by Alert name

Product
Cortex XDR
Last date published
2024-06-04
Category
Analytics Alert Reference
Order
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
  • Requires:
    • eXtended Threat Hunting (XTH)

Detection Modules

Identity Analytics

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

Unsecured Credentials: Credentials In Files (T1552.001)

Severity

Informational

Description

A user created a pfx file for the first time.

Attacker's Goals

Attackers may export certificates to pfx files to use them for authentication, persistence or NTLM extraction.

Investigative actions

  • Check if the pfx creation is legitimate for the user (testing, IT, etc.).
  • Follow further actions done by the user (ex. authentication using certificates).

Variations

A user created a pfx in a suspicious folder for the first time

Synopsis

ATT&CK Tactic

Credential Access (TA0006)

ATT&CK Technique

Unsecured Credentials: Credentials In Files (T1552.001)

Severity

Low

Description

A user created a pfx in a suspicious folder which is publicly accessible, for the first time.

Attacker's Goals

Attackers may export certificates to pfx files to use them for authentication, persistence or NTLM extraction.

Investigative actions

  • Check if the pfx creation is legitimate for the user (testing, IT, etc.).
  • Follow further actions done by the user (ex. authentication using certificates).