Tim Peck
@timpeckTrusted contributorCompletionist
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916 detections
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This rule detects Command and Control (C2) communication associated with the Amatera Stealer malware. It specifically looks for TLS traffic where the Server Name Indication (SNI) field contains the string "aether100pronotification.table.core.windows.net". This SNI is considered bogus and indicative of Amatera Stealer's C2 activity.
Detects powershell.exe execution from non-standard parent processes or atypical file system locations, a behavior often associated with ClickFix social engineering attacks.
Detects a process loading a commonly hijacked system DLL from a non-standard file path that is unsigned. This is indicative of DLL Search Order Hijacking, a technique used by malware like Rhadamanthys to achieve persistence and stealthy execution.
DOS Sustained ICMP Flood Attempt
Suricata
This rule detects a sustained ICMP flood attempt, which is a type of Denial of Service (DoS) attack. It triggers an alert if more than 100 ICMP packets (type 8, echo request) are observed from an external network to the home network within a 10-second window, tracked per source IP. This indicates an adversary is attempting to overwhelm the target system or network with ICMP traffic.
This rule detects a high rate of ICMP echo requests from a single source to a server within the home network, indicating a potential Denial of Service (DoS) attack. It triggers an alert if more than 50 ICMP echo requests are observed from the same source within a 1-second interval.
Detects the execution of Cloudflared with command-line arguments associated with creating a persistent tunnel or installing it as a service. This technique is used by the Kraken ransomware group for persistence and command and control.
Detects the execution of `sysctl` commands querying for specific Apple Silicon M2+ hardware features. This behavior is used by the DigitStealer malware for anti-analysis purposes to evade detection and target specific hardware.
This rule detects network traffic indicative of Kraken Ransomware activity, specifically looking for connections to Cloudflared tunnels. It identifies TLS SNI (Server Name Indication) containing '.trycloudflare.com', which is a domain used by Cloudflare for its tunnel services. This behavior is often leveraged by adversaries for command and control or data exfiltration, as it can help bypass traditional firewall rules and obscure the true destination of the traffic.
Detects FileFix campaigns that use clipboard manipulation functions in web pages to deliver malicious PowerShell commands. These campaigns often trick users into copying and executing payloads, sometimes involving steganography with image files.
Detects the macOS Script Editor (`Script Editor.app`) launching child processes or initiating network connections. This behavior can indicate the execution of a malicious AppleScript used to download secondary payloads or execute arbitrary commands, as seen in campaigns delivering stealers like MacSync and Odyssey.
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