Internet Explorer Autorun Keys Modification
Detects modification of autostart extensibility point (ASEP) in registry.
Sigma rule (View on GitHub)
1title: Internet Explorer Autorun Keys Modification
2id: a80f662f-022f-4429-9b8c-b1a41aaa6688
3related:
4 - id: 17f878b8-9968-4578-b814-c4217fc5768c
5 type: obsolete
6status: test
7description: Detects modification of autostart extensibility point (ASEP) in registry.
8references:
9 - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1547.001/T1547.001.md
10 - https://learn.microsoft.com/en-us/sysinternals/downloads/autoruns
11 - https://gist.github.com/GlebSukhodolskiy/0fc5fa5f482903064b448890db1eaf9d # a list with registry keys
12author: Victor Sergeev, Daniil Yugoslavskiy, Gleb Sukhodolskiy, Timur Zinniatullin, oscd.community, Tim Shelton, frack113 (split)
13date: 2019-10-25
14modified: 2023-08-17
15tags:
16 - attack.privilege-escalation
17 - attack.persistence
18 - attack.t1547.001
19logsource:
20 category: registry_set
21 product: windows
22detection:
23 ie:
24 TargetObject|contains:
25 - '\Software\Wow6432Node\Microsoft\Internet Explorer'
26 - '\Software\Microsoft\Internet Explorer'
27 ie_details:
28 TargetObject|contains:
29 - '\Toolbar'
30 - '\Extensions'
31 - '\Explorer Bars'
32 filter_empty:
33 Details: '(Empty)'
34 filter_extensions:
35 TargetObject|contains:
36 - '\Extensions\{2670000A-7350-4f3c-8081-5663EE0C6C49}'
37 - '\Extensions\{31D09BA0-12F5-4CCE-BE8A-2923E76605DA}'
38 - '\Extensions\{789FE86F-6FC4-46A1-9849-EDE0DB0C95CA}'
39 - '\Extensions\{A95fe080-8f5d-11d2-a20b-00aa003c157a}'
40 filter_toolbar:
41 TargetObject|endswith:
42 - '\Toolbar\ShellBrowser\ITBar7Layout'
43 - '\Toolbar\ShowDiscussionButton'
44 - '\Toolbar\Locked'
45 condition: ie and ie_details and not 1 of filter_*
46falsepositives:
47 - Legitimate software automatically (mostly, during installation) sets up autorun keys for legitimate reason
48 - Legitimate administrator sets up autorun keys for legitimate reason
49level: medium
References
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