Florian Roth
35 lines
1.1 KiB
YAML
35 lines
1.1 KiB
YAML
title: Suspicious Regsvr32 HTTP IP Pattern
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id: 2dd2c217-bf68-437a-b57c-fe9fd01d5de8
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status: experimental
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description: Detects a certain command line flag combination used by regsvr32 when used to download and register a DLL from a remote address which uses HTTP (not HTTPS) and a IP address and not FQDN
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references:
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- https://twitter.com/mrd0x/status/1461041276514623491c19-ps
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- https://twitter.com/tccontre18/status/1480950986650832903
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tags:
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- attack.defense_evasion
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- attack.t1218.010
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author: Florian Roth
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date: 2022/01/11
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logsource:
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category: process_creation
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product: windows
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detection:
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selection_flags:
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CommandLine|contains|all:
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- ' /s'
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- ' /u'
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selection_ip:
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CommandLine|contains:
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- ' /i:http://1'
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- ' /i:http://2'
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- ' /i:http://3'
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- ' /i:http://4'
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- ' /i:http://5'
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- ' /i:http://6'
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- ' /i:http://7'
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- ' /i:http://8'
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- ' /i:http://9'
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condition: all of selection*
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falsepositives:
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- FQDNs that start with a number
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level: high |