Query: detection rule: Detects regsvr32 execution to download and install DLLs located remotely where the address is an IP address.
Matching passage: Sigma rule: Detects regsvr32 execution to download and install DLLs located remotely where the address is an IP address.. Logsource: windows / process_creation. Rule: title: Potentially Suspicious Regsvr32 HTTP IP Pattern id: 2dd2c217-bf68-437a-b57c-fe9fd01d5de8 status: test description: Detects regsvr32 execution to download and install DLLs located remotely where the address is an IP address. references: - https://twitter.com/mrd0x/status/1461041276514623491 - https://twitter.com/tccontre18/status/1480950986650832903 - https://lolbas-project.github.io/lolbas/Binaries/Regsvr32/ author: Florian Roth (Nextron Systems) date: 2022-01-11 modified: 2023-05-24 tags: - attack.stealth - attack.t1218.010 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \regsvr32.exe - OriginalFileName: REGSVR32.EXE selection_ip: CommandLine|contains: - ' /i:http://1' - ' /i:http://2' - ' /i:http://3' - ' /i:http://4' - ' /i:http://5' - ' /i:http://6' - ' /i:http://7' - ' /i:http://8' - ' /i:http://9' - ' /i:https://1' - ' /i:https://2' - ' /i:https://3' - ' /i:https://4' - ' /i:https://5' - ' /i:https://6' - ' /i:https://7' - ' /i:https://8' - ' /i:https://9' - ' -i:http://1' - ' -i:http://2' - ' -i:http://3' - ' -i:http://4' - ' -i:http://5' - ' -i:http://6' - ' -i:http://7' - ' -i:http://8' - ' -i:http://9' - ' -i:https://1' - ' -i:https://2' - ' -i:https://3' - ' -i:https://4' - ' -i:https://5' - ' -i:https://6' - ' -i:https://7' - ' -i:https://8' - ' -i:https://9' condition: all of selection_* falsepositives: - FQDNs that start with a number such as "7-Zip" level: high
Near-miss passage: Sigma rule: Detects suspicious child processes of the "Manage Engine ServiceDesk Plus" Java web service. Logsource: windows / process_creation. Rule: title: Suspicious Child Process Of Manage Engine ServiceDesk id: cea2b7ea-792b-405f-95a1-b903ea06458f status: test description: Detects suspicious child processes of the "Manage Engine ServiceDesk Plus" Java web service references: - https://www.horizon3.ai/manageengine-cve-2022-47966-technical-deep-dive/ - https://github.com/horizon3ai/CVE-2022-47966/blob/3a51c6b72ebbd87392babd955a8fbeaee2090b35/CVE-2022-47966.py - https://blog.viettelcybersecurity.com/saml-show-stopper/ author: Florian Roth (Nextron Systems) date: 2023-01-18 modified: 2023-08-29 tags: - attack.command-and-control - attack.t1102 logsource: category: process_creation product: windows detection: selection: ParentImage|contains|all: - \ManageEngine\ServiceDesk\ - \java.exe Image|endswith: - \AppVLP.exe - \bash.exe - \bitsadmin.exe - \calc.exe - \certutil.exe - \cscript.exe - \curl.exe - \forfiles.exe - \mftrace.exe - \mshta.exe - \net.exe - \net1.exe - \notepad.exe - \powershell.exe - \pwsh.exe - \query.exe - \reg.exe - \schtasks.exe - \scrcons.exe - \sh.exe - \systeminfo.exe - \whoami.exe - \wmic.exe - \wscript.exe filter_main_net: Image|endswith: - \net.exe - \net1.exe CommandLine|contains: ' stop' condition: selection and not 1 of filter_main_* falsepositives: - Legitimate sub processes started by Manage Engine ServiceDesk Pro level: high