Arnold Chan
@slazTrusted contributorCompletionist
2 followers2,099 downloads4,369 copies51 likes26,049 views
7,555 detections
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4,191
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676
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18
Detects anomalous, high-volume authentication failures originating from a single source IP address targeting multiple distinct internal devices within a short timeframe. This behavior is indicative of a password spraying or brute-force attack.
Detects web server processes (e.g., w3wp.exe, nginx.exe, tomcat.exe) spawning command-line interpreters or utilities that could indicate remote code execution, web shell activity, or post-exploitation discovery/download attempts.
Detects web server processes (e.g., w3wp.exe, nginx.exe, tomcat.exe) spawning command-line interpreters or utilities that could indicate remote code execution, web shell activity, or post-exploitation discovery/download attempts.
This rule detects the use of common command-line utilities (grep, find, bash, sh, awk) to search for sensitive files, such as SSH keys, configuration files containing credentials, or password-related patterns. The rule includes exclusions for common administrative, security, and backup tools that might legitimately perform such scans.
Detects instances where internal devices access the 3BB sales portal (agent.3bb.co.th) while demonstrating signs of compromise. The rule correlates the portal access with recent network activity involving identified MeshCentral attacker infrastructure (ayuthayatech.com or 92.63.180.133) and further filters for behavioral anomalies such as off-hours access, the use of non-standard browser processes, or the use of unexpected service accounts.
Detects instances where internal devices access the 3BB sales portal (agent.3bb.co.th) while demonstrating signs of compromise. The rule correlates the portal access with recent network activity involving identified MeshCentral attacker infrastructure (ayuthayatech.com or 92.63.180.133) and further filters for behavioral anomalies such as off-hours access, the use of non-standard browser processes, or the use of unexpected service accounts.
Detects anomalous certificate-based authentication attempts to Jasmine network services characterized by rapid, impossible-travel scenarios or geo-inconsistent session patterns. This behavior is indicative of a stolen certificate being reused from a different geographic location or network, bypassing standard authentication patterns.
Detects anomalous certificate-based authentication attempts to Jasmine network services characterized by rapid, impossible-travel scenarios or geo-inconsistent session patterns. This behavior is indicative of a stolen certificate being reused from a different geographic location or network, bypassing standard authentication patterns.
Detects anomalous certificate-based authentication attempts to Jasmine network services characterized by rapid, impossible-travel scenarios or geo-inconsistent session patterns. This behavior is indicative of a stolen certificate being reused from a different geographic location or network, bypassing standard authentication patterns.
Detects SSH persistence planted during the Red Heron campaign: authorized_keys file writes under a .ssh folder, correlated with process command lines referencing authorized_keys and the operator's observed key comment naming pattern (backdoor / root-shell).
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