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HighSigmaHQ pH-T (Nextron Systems) +2

Potential Tampering With RDP Related Registry Keys Via Reg.EXE

Detects the execution of "reg.exe" for enabling/disabling the RDP service on the host by tampering with the 'CurrentControlSet\Control\Terminal Server' values

Detection logic

Detection requirements

Platform: Windows
The rule states no platform. This is derived from the 2 ATT&CK techniques it maps to.
Log source product: windows
Log source category: process_creation

Known benign triggers

Unknown

References

Links the source published beside this detection. Reference is the link the source wrote, unmodified. Class is decided by this catalogue from the host and path, not stated by the source. Cited by counts published detections citing the same resource, including this one, and the sources beneath it count the repositories this catalogue ingests, which is not the same as independent research.
Reference	Class	Cited by
etutorials.org/Microsoft+Products/microsoft+windows+server+2003+terminal+services/Chapter+6+Registry/Registry+Keys+for+Terminal+Services/	Unclassified	3
woshub.com/rds-shadow-how-to-connect-to-a-user-session-in-windows-server-2012-r2/	Unclassified	3
admx.help/HKLM/SOFTWARE/Policies/Microsoft/Windows%20NT/Terminal%20Services	Unclassified	3
bazaar.abuse.ch/sample/6f3aa9362d72e806490a8abce245331030d1ab5ac77e400dd475748236a6cc81/	Unclassified	5
blog.sekoia.io/darkgate-internals/	Unclassified	2
blog.talosintelligence.com/understanding-the-phobos-affiliate-structure/	Threat report	2
github.com/redcanaryco/atomic-red-team/blob/02c7d02fe1f1feb0fc7944550408ea8224273994/atomics/T1112/T1112.md#atomic-test-63---disable-remote-desktop-anti-alias-setting-through-registry	Detection test	2
github.com/redcanaryco/atomic-red-team/blob/02c7d02fe1f1feb0fc7944550408ea8224273994/atomics/T1112/T1112.md#atomic-test-64---disable-remote-desktop-security-settings-through-registry	Detection test	2
github.com/redcanaryco/atomic-red-team/blob/dd526047b8c399c312fee47d1e6fb531164da54d/atomics/T1112/T1112.yaml#L790	Detection test	2
learn.microsoft.com/en-us/windows-hardware/customize/desktop/unattend/microsoft-windows-terminalservices-rdp-winstationextensions-securitylayer	Product documentation	2
thedfirreport.com/2022/02/21/qbot-and-zerologon-lead-to-full-domain-compromise/	Threat report	8from 2 sources
threathunterplaybook.com/hunts/windows/190407-RegModEnableRDPConnections/notebook.html	Detection test	3
twitter.com/SagieSec/status/1469001618863624194?t=HRf0eA0W1YYzkTSHb-Ky1A&s=03	Social post	3
web.archive.org/web/20200929062532/https://blog.menasec.net/2019/02/threat-hunting-rdp-hijacking-via.html	Unclassified	3
www.trendmicro.com/en_us/research/25/i/unmasking-the-gentlemen-ransomware.html	Threat report	4

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