Query: detect Detects the execution of "sysctl" with specific arguments that have been used by threat actors and malware. It provides in logs
Matching passage: Sigma rule: Detects the execution of "sysctl" with specific arguments that have been used by threat actors and malware. It provides. Logsource: macos / process_creation. Rule: title: System Information Discovery Via Sysctl - MacOS id: 6ff08e55-ea53-4f27-94a1-eff92e6d9d5c status: test description: 'Detects the execution of "sysctl" with specific arguments that have been used by threat actors and malware. It provides system hardware information. This process is primarily used to detect and avoid virtualization and analysis environments. ' references: - https://www.loobins.io/binaries/sysctl/# - https://evasions.checkpoint.com/techniques/macos.html - https://www.welivesecurity.com/2019/04/09/oceanlotus-macos-malware-update/ - https://www.sentinelone.com/labs/20-common-tools-techniques-used-by-macos-threat-actors-malware/ - https://objective-see.org/blog/blog_0x1E.html - https://www.virustotal.com/gui/file/1c547a064494a35d6b5e6b459de183ab2720a22725e082bed6f6629211f7abc1/behavior - https://www.virustotal.com/gui/file/b4b1fc65f87b3dcfa35e2dbe8e0a34ad9d8a400bec332025c0a2e200671038aa/behavior author: Pratinav Chandra date: 2024-05-27 tags: - attack.stealth - attack.t1497.001 - attack.discovery - attack.t1082 logsource: product: macos category: process_creation detection: selection_img: - Image|endswith: /sysctl - CommandLine|contains: sysctl selection_cmd: CommandLine|contains: - hw. - kern. - machdep. condition: all of selection_* falsepositives: - Legitimate administrative activities level: medium
Near-miss passage: Sigma rule: Detects potentially suspicious CommandLine of electron apps (teams, discord, slack, etc.). This could be a sign of abuse. Logsource: windows / process_creation. Rule: title: Potentially Suspicious Electron Application CommandLine id: 378a05d8-963c-46c9-bcce-13c7657eac99 related: - id: f26eb764-fd89-464b-85e2-dc4a8e6e77b8 type: similar status: test description: Detects potentially suspicious CommandLine of electron apps (teams, discord, slack, etc.). This could be a sign of abuse to proxy execution through a signed binary. references: - https://positive.security/blog/ms-officecmd-rce - https://lolbas-project.github.io/lolbas/Binaries/Teams/ - https://lolbas-project.github.io/lolbas/Binaries/Msedge/ - https://lolbas-project.github.io/lolbas/Binaries/msedgewebview2/ - https://medium.com/@MalFuzzer/one-electron-to-rule-them-all-dc2e9b263daf - https://chromium.googlesource.com/chromium/chromium/+/master/content/public/common/content_switches.cc author: frack113, Nasreddine Bencherchali (Nextron Systems) date: 2023-09-05 modified: 2023-11-09 tags: - attack.execution logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: - \chrome.exe - \code.exe - \discord.exe - \GitHubDesktop.exe - \keybase.exe - \msedge_proxy.exe - \msedge.exe - \msedgewebview2.exe - \msteams.exe - \slack.exe - \Teams.exe - OriginalFileName: - chrome.exe - code.exe - discord.exe - GitHubDesktop.exe - keybase.exe - msedge_proxy.exe - msedge.exe - msedgewebview2.exe - msteams.exe - slack.exe - Teams.exe selection_cli: CommandLine|contains: - --browser-subprocess-path - --gpu-launcher - --renderer-cmd-prefix - --utility-cmd-prefix condition: all of selection_* falsepositives: - Legitimate usage for debugging purposes level: medium