Network Connection Initiated By Regsvr32.EXE

testmedium
log source: windows · network_connectionauthor Dmitriy Lifanov, oscd.communitydate 2019-10-25
01

description

What this is, in brief.

Detects a network connection initiated by "Regsvr32.exe"

02

tags

attack.executionattack.stealthattack.t1559.001attack.t1218.010
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rule source (YAML)

title: Network Connection Initiated By Regsvr32.EXE
id: c7e91a02-d771-4a6d-a700-42587e0b1095
status: test
description: Detects a network connection initiated by "Regsvr32.exe"
references:
    - https://pentestlab.blog/2017/05/11/applocker-bypass-regsvr32/
    - https://oddvar.moe/2017/12/13/applocker-case-study-how-insecure-is-it-really-part-1/
author: Dmitriy Lifanov, oscd.community
date: 2019-10-25
modified: 2023-09-18
tags:
    - attack.execution
    - attack.stealth
    - attack.t1559.001
    - attack.t1218.010
logsource:
    category: network_connection
    product: windows
detection:
    selection:
        Initiated: 'true'
        Image|endswith: '\regsvr32.exe'
    condition: selection
falsepositives:
    - Unknown
level: medium
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detects techniques (2)

ATT&CK techniques this enables or maps to.

05

references

External citations — patches, advisories, analysis.