Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects when the `csrutil` command is used with the `disable` argument to turn off System Integrity Protection (SIP) on macOS. This action is often performed in post-exploitation scenarios by adversaries to gain greater control over the system or to bypass security mechanisms.
This rule detects the execution of the 'sw_vers' command-line utility on macOS systems when specific arguments are used to query system information. The arguments monitored include '-buildVersion', '-productName', and '-productVersion', which are commonly used for system information discovery.
Detects suspicious DNS queries to Monero mining pools
Detects the use of csrutil to disable the Configure System Integrity Protection (SIP). This technique is used in post-exploit scenarios.
Detects the use of csrutil to view the Configure System Integrity Protection (SIP) status. This technique is used in post-exploit scenarios.
Detects the use of "ioreg" which will show I/O Kit registry information.
This process is used for system information discovery.
It has been observed in-the-wild by calling this process directly or using bash and grep to look for specific strings.
This process is used for system information discovery.
It has been observed in-the-wild by calling this process directly or using bash and grep to look for specific strings.
Detects the use of "sw_vers" for system information discovery
Detects the execution of common macOS command-line utilities used for enumerating local network configuration and firewall settings. This includes tools like 'arp', 'ifconfig', 'netstat', 'networksetup', and 'socketfilterfw', as well as 'defaults' when querying specific firewall preferences.
Detects enumeration of local network configuration
This rule detects attempts to modify file time attributes using the 'touch' command on macOS. Adversaries may alter file timestamps to hide new or modified files, making them appear less suspicious to forensic investigators or automated tools. The rule specifically looks for the execution of the 'touch' command with common arguments used for timestomping, such as '-t' (specify time), '-acmr' (change access, modification, creation, and reference times), '-d' (specify date string), or '-r' (reference file).
Detects the creation of hidden user accounts on macOS. This can occur either by assigning a UserID less than 500 or by explicitly setting the 'IsHidden' option to true during account creation using the 'dscl' command-line utility.
This rule detects attempts to disable security tools on macOS systems. It specifically looks for the use of '/bin/launchctl' to 'unload' security-related plists (property list files) associated with common security software like Objective-See's LuLu and BlockBlock, Google Santa, Carbon Black, Little Snitch, Tenable Nessus, OpenDNS Umbrella, Crowdstrike Falcon, osquery, Filebeat, Auditbeat, Packetbeat, and td-agent. Additionally, it detects attempts to disable macOS Gatekeeper using '/usr/sbin/spctl' with the 'disable' argument.
Detects attempts to clear macOS system logs by identifying common commands used for file deletion ('rm', 'unlink', 'shred') when targeting known log directories such as '/var/log' or user-specific '/Users/*/Library/Logs/'. This activity is often performed by adversaries to remove evidence of their presence and actions on a compromised system.
This rule detects attempts to bypass macOS Gatekeeper by removing the 'com.apple.quarantine' extended attribute from a file using the 'xattr' utility. This action prevents Gatekeeper from performing its security checks on the file, allowing untrusted applications to execute without user prompts.
This rule detects attempts to enumerate remote systems on a macOS host using the 'arp' and 'ping' utilities. Specifically, it looks for 'arp -a' commands, which list all current ARP entries, and 'ping' commands targeting common private IP address ranges (10.0.0.0/8, 192.168.0.0/16, 172.16.0.0/12) as well as localhost (127.0.0.0/8) and APIPA (169.254.0.0/16) ranges. This activity is indicative of an adversary performing network discovery to identify other systems for potential lateral movement.
This rule detects when the macOS Script Editor application spawns child processes that are commonly used for malicious activities. Specifically, it looks for the Script Editor launching shell interpreters (bash, sh, zsh, dash, fish), scripting languages (python, perl, php, osascript), or utilities often leveraged in attack chains (curl, mktemp, chmod, nohup, openssl, plutil, PlistBuddy, xattr, sqlite, funzip, popen). This behavior can indicate an adversary using AppleScript or other scripting capabilities within Script Editor to execute arbitrary commands, download payloads, or manipulate system configurations.
Detects potential OGNL Injection exploitation attempts in JVM-based applications, which could lead to Remote Code Execution (RCE). This rule specifically looks for error messages indicating OGNL parsing failures, such as 'org.apache.commons.ognl.OgnlException' or 'ExpressionSyntaxException', which are common indicators when an attacker attempts to inject malicious OGNL expressions. This type of vulnerability has been exploited in high-profile cases like Apache Struts (CVE-2017-5638) and Confluence (CVE-2022-26134).
Detects the use of the 'grep' utility on macOS to search for common security software names. This activity can indicate an adversary attempting to discover installed security solutions on a compromised system.
This rule detects command-line operations that interact with common shell history files on macOS systems. Adversaries often target these files (e.g., .bash_history, .zsh_history) to extract sensitive information such as credentials or commands executed by users, which can aid in further compromise or understanding the environment.
Detects the execution of 'osacompile' by potentially suspicious parent processes such as 'applet' or 'osascript'. This activity can indicate an attempt to compile AppleScript or JavaScript for Automation (JXA) code, which adversaries might use for execution or obfuscation.
Detects the usage of the 'find' command on macOS with specific permission-related arguments. These arguments are often used by attackers during discovery phases to locate files with unusual permissions, such as SUID/SGID binaries or world-writable files, which could indicate potential privilege escalation vectors or misconfigurations.
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