Add macOS browser spawned shell external connection detection - #4256
Add macOS browser spawned shell external connection detection#4256themaryjo wants to merge 10 commits into
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| search: '%original_detection_search% | search src="$src$"' | ||
| earliest_offset: $info_min_time$ | ||
| latest_offset: $info_max_time$ | ||
| - name: View risk events for the last 7 days for - "$src$" | ||
| search: '| from datamodel Risk.All_Risk | search normalized_risk_object IN ("$src$") | stats count min(_time) as firstTime max(_time) as lastTime values(search_name) as "Search Name" values(risk_message) as "Risk Message" values(analyticstories) as "Analytic Stories" values(annotations._all) as "Annotations" values(annotations.mitre_attack.mitre_tactic) as "ATT&CK Tactics" by normalized_risk_object | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`' |
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When an analyst opens either drilldown, $src$ cannot be populated because the preceding stats command retains only src_ip, not src. This leaves the detection-results filter and risk-object lookup with an empty or unresolved source value; update both drilldowns to reference $src_ip$ and filter on src_ip.
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Details
Adding a Cisco NVM detection for a macOS browser spawning a command interpreter that establishes an external network connection.
Story
Cisco Network Visibility Module Analytics
Detections
Cisco NVM - MacOS Browser Spawned Command Interpreter With External Network Connection: Detects potentially suspicious behavior on macOS where a browser process spawns a Unix command interpreter that establishes a network connection to a public IP address.