Query: Sigma rule for Detects nltest commands that can be used for information discovery
Matching passage: Sigma rule: Detects nltest commands that can be used for information discovery. Logsource: windows / process_creation. Rule: title: Potential Recon Activity Via Nltest.EXE id: 5cc90652-4cbd-4241-aa3b-4b462fa5a248 related: - id: 410ad193-a728-4107-bc79-4419789fcbf8 type: similar - id: 903076ff-f442-475a-b667-4f246bcc203b type: similar - id: 77815820-246c-47b8-9741-e0def3f57308 type: obsolete status: test description: Detects nltest commands that can be used for information discovery references: - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2012-r2-and-2012/cc731935(v=ws.11) - https://thedfirreport.com/2021/08/16/trickbot-leads-up-to-fake-1password-installation/ - https://thedfirreport.com/2020/10/18/ryuk-in-5-hours/ - https://book.hacktricks.xyz/windows/basic-cmd-for-pentesters - https://research.nccgroup.com/2022/08/19/back-in-black-unlocking-a-lockbit-3-0-ransomware-attack/ - https://eqllib.readthedocs.io/en/latest/analytics/03e231a6-74bc-467a-acb1-e5676b0fb55e.html - https://redcanary.com/blog/how-one-hospital-thwarted-a-ryuk-ransomware-outbreak/ - https://github.com/redcanaryco/atomic-red-team/blob/5360c9d9ffa3b25f6495f7a16e267b719eba2c37/atomics/T1482/T1482.md#atomic-test-2---windows---discover-domain-trusts-with-nltest author: Craig Young, oscd.community, Georg Lauenstein date: 2021-07-24 modified: 2023-12-15 tags: - attack.discovery - attack.t1016 - attack.t1482 logsource: category: process_creation product: windows detection: selection_nltest: - Image|endswith: \nltest.exe - OriginalFileName: nltestrk.exe selection_recon: - CommandLine|contains|all: - server - query - CommandLine|contains: - /user - all_trusts - 'dclist:' - 'dnsgetdc:' - domain_trusts - 'dsgetdc:' - parentdomain - trusted_domains condition: all of selection_* falsepositives: - Legitimate administration use but user and host must be investigated level: medium
Near-miss passage: Sigma rule: Detects a highly relevant Antivirus alert that reports a remote access tool. This event must not be ignored just because. Logsource: antivirus. Rule: title: Antivirus - Remote Access Tools Signature id: 97233998-3838-4581-88c6-f1d19d3993fb status: experimental description: 'Detects a highly relevant Antivirus alert that reports a remote access tool. This event must not be ignored just because the AV has blocked the malware but investigate, how it came there in the first place. ' references: - https://www.nextron-systems.com/?s=antivirus - https://www.virustotal.com/gui/file/d9669f7e3eb3a9cdf6a750eeb2ba303b5ae148a43e36546896f1d1801e912466 author: Arnim Rupp (Nextron Systems) date: 2026-06-15 tags: - attack.execution - attack.t1203 - attack.command-and-control - attack.t1219.002 logsource: category: antivirus detection: selection: Signature|contains: - AgentB - AgentTesla - AMRat - Ammyy - AsyncRAT - Bandook - Bitrat - Bladabindi - Connectwise - CyberGate - DarkComet - DCrat - Delf - DokStorm - Egairtigado - Gh0st - Gorat - GodRat - Jalapeno - LummaC2 - Minirat - Netwire - NanoCore - NJRat - Paralax - PlugX - Pulsar - Quasar - Remcos - Ravartar - RemoteAdmin - RemoteTool - revengeRAT - rokRAT - salatstealer - Salgorea - SmokedHam - TigerRat - Tzeebot - WarZone - VenomRAT - Vidar - Wirenet - XWorm - Zapchast - Zegost condition: selection falsepositives: - Unlikely level: critical