Suspicious Key Manager Access

testhigh
log source: windows · process_creationauthor Florian Roth (Nextron Systems)date 2022-04-21
01

description

What this is, in brief.

Detects the invocation of the Stored User Names and Passwords dialogue (Key Manager)

02

tags

attack.credential-accessattack.t1555.004
03

rule source (YAML)

title: Suspicious Key Manager Access
id: a4694263-59a8-4608-a3a0-6f8d3a51664c
status: test
description: Detects the invocation of the Stored User Names and Passwords dialogue (Key Manager)
references:
    - https://twitter.com/NinjaParanoid/status/1516442028963659777
author: Florian Roth (Nextron Systems)
date: 2022-04-21
modified: 2023-02-09
tags:
    - attack.credential-access
    - attack.t1555.004
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        - Image|endswith: '\rundll32.exe'
        - OriginalFileName: 'RUNDLL32.EXE'
    selection_cli:
        CommandLine|contains|all:
            - 'keymgr'
            - 'KRShowKeyMgr'
    condition: all of selection_*
falsepositives:
    - Administrative activity
level: high
regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_rundll32_keymgr/info.yml
04

detects techniques (1)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.