Query: Sigma rule for An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, Amm
Matching passage: Sigma rule: An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, Amm. Logsource: windows / dns_query. Rule: title: DNS Query To Remote Access Software Domain From Non-Browser App id: 4d07b1f4-cb00-4470-b9f8-b0191d48ff52 related: - id: 71ba22cb-8a01-42e2-a6dd-5bf9b547498f type: obsolete - id: 7c4cf8e0-1362-48b2-a512-b606d2065d7d type: obsolete - id: ed785237-70fa-46f3-83b6-d264d1dc6eb4 type: obsolete status: test description: 'An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks. These services are commonly used as legitimate technical support software, and may be allowed by application control within a target environment. Remote access tools like VNC, Ammyy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land) ' references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-4---gotoassist-files-detected-test-on-windows - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-3---logmein-files-detected-test-on-windows - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1219/T1219.md#atomic-test-6---ammyy-admin-software-execution - https://redcanary.com/blog/misbehaving-rats/ - https://techcommunity.microsoft.com/t5/microsoft-sentinel-blog/hunting-for-omi-vulnerability-exploitation-with-azure-sentinel/ba-p/2764093 - https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-320a - https://blog.sekoia.io/scattered-spider-laying-new-eggs/ - https://learn.microsoft.com/en-us/windows/client-management/client-tools/quick-assist#disable-quick-assist-within-your-organization author: frack113, Connor Martin date: 2022-07-11 modified: 2024-12-17 tags: - attack.command-and-control - attack.t1219.002 logsource: product: windows category: dns_query detection: selection_generic: QueryName|endswith: - agent.jumpcloud.com - agentreporting.atera.com - ammyy.com - api.parsec.app - api.playanext.com - api.splashtop.com - app.atera.com - assist.zoho.com - authentication.logmeininc.com - beyondtrustcloud.com - cdn.kaseya.net - client.teamviewer.com - comserver.corporate.beanywhere.com - control.connectwise.com - downloads.zohocdn.com - dwservice.net - express.gotoassist.com - getgo.com - getscreen.me - integratedcha
Near-miss passage: Sigma rule: Detects PowerShell module creation where the module Contents are set to "function Get-VMRemoteFXPhysicalVideoAdapter". T. Logsource: windows / powershell-classic. Rule: title: Potential RemoteFXvGPUDisablement.EXE Abuse id: f65e22f9-819e-4f96-9c7b-498364ae7a25 related: - id: a6fc3c46-23b8-4996-9ea2-573f4c4d88c5 type: similar - id: 38a7625e-b2cb-485d-b83d-aff137d859f4 type: similar - id: cacef8fc-9d3d-41f7-956d-455c6e881bc5 type: similar status: test description: Detects PowerShell module creation where the module Contents are set to "function Get-VMRemoteFXPhysicalVideoAdapter". This could be a sign of potential abuse of the "RemoteFXvGPUDisablement.exe" binary which is known to be vulnerable to module load-order hijacking. references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1218/T1218.md - https://github.com/redcanaryco/AtomicTestHarnesses/blob/7e1e4da116801e3d6fcc6bedb207064577e40572/TestHarnesses/T1218_SignedBinaryProxyExecution/InvokeRemoteFXvGPUDisablementCommand.ps1 author: frack113, Nasreddine Bencherchali (Nextron Systems) date: 2021-07-13 modified: 2023-05-09 tags: - attack.stealth - attack.t1218 logsource: product: windows service: powershell-classic definition: fields have to be extract from event detection: selection: Data|contains: ModuleContents=function Get-VMRemoteFXPhysicalVideoAdapter { condition: selection falsepositives: - Unknown level: high