Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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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
This YARA rule detects the Cicada3301 ransomware by identifying specific byte patterns (signatures) within executable files. The rule looks for distinct code sequences related to enumerating valid drives, recursively collecting files, and encrypting files. It includes multiple parts for file collection and two versions of file encryption routines, indicating a robust detection mechanism for different variants or stages of the ransomware's operation. The presence of these patterns strongly suggests the file is a Cicada3301 ransomware sample.
Detects command-line keywords indicative of the execution of the WinPwn tool, which is used for Windows and Active Directory reconnaissance and exploitation. This rule specifically looks for 'Offline_Winpwn', 'WinPwn ', 'WinPwn.exe', or 'WinPwn.ps1' in the command line.
Detects scriptblock text keywords indicative of potential usage of the tool WinPwn. WinPwn is a tool for Windows and Active Directory reconnaissance and exploitation. The rule specifically looks for 'Offline_Winpwn', 'WinPwn ', 'WinPwn.exe', or 'WinPwn.ps1' within PowerShell script block logs.
This rule detects the execution of `find.exe` or `findstr.exe` on Windows systems when used to search for keywords commonly associated with security tools. Attackers often use these utilities to discover installed security software by piping the output of other reconnaissance commands (like `tasklist` or `whoami`) through `findstr` to filter for specific terms. The rule specifically looks for command-line arguments containing keywords such as "avira", "cb", "cylance", "defender", "kaspersky", "kes", "mc", "sec", "sentinel", "symantec", and "virus", including variations with double quotes.
Detects the execution of "whoami.exe" with the "/FO CSV" flag to choose CSV as output format or with redirection options (e.g., `whoami > file.txt`) to export the results to a file for later use. This activity is often observed in post-exploitation discovery phases by adversaries to gather information about the current user.
Detects the usage of `findstr.exe` in combination with keywords like "Everyone" or "BUILTIN" to identify potentially misconfigured file or folder permissions. This activity is often seen during reconnaissance phases by adversaries looking for privilege escalation opportunities.
Detects the execution of the 'whoami.exe' command by highly privileged accounts such as 'AUTHORITY\SYSTEM', 'NT AUTHORITY\SYSTEM', or 'TrustedInstaller'. This activity can indicate an attacker performing discovery after achieving privilege escalation, as these accounts are often targeted for abuse.
Yara rule that detects Cicada3301 ransomware.
Detects Certipy execution, a tool for Active Directory Certificate Services enumeration and abuse based on PE metadata characteristics and common command line arguments.
Detects the execution of common network scanning and reconnaissance tools on Linux systems. These tools are often used by adversaries to enumerate local or remote network services, identify open ports, and gather information about network topology and available hosts. The rule specifically looks for the execution of tools like netcat (when not in listen mode), nmap, hping, naabu, autorecon, and telnet.
Detects the execution of "whoami.exe" by privileged accounts that are often abused by threat actors
Detects the execution of "whoami.exe" with the "/FO" flag to choose CSV as output format or with redirection options to export the results to a file for later use.
This YARA rule detects the OrcusRAT backdoor by identifying specific bytecode patterns associated with its functionalities. These functionalities include retrieving TCP connections, gathering operating system information, taking screenshots, extracting passwords, and processing keylogger actions. The rule looks for a combination of these patterns within a file that also has a valid DOS header (MZ signature).
Detects execution of network scanning and reconnaisance tools. These tools can be used for the enumeration of local or remote network services for example.
This rule detects attempts to use obfuscated or encoded IP addresses (e.g., hexadecimal, octal, or URL-encoded formats) within command-line arguments of `ping.exe` or `arp.exe`. This technique can be used by adversaries to evade simple string-based detections or to obscure their network communication targets.
This rule detects PowerShell scripts that attempt to discover security software installed on a system. Specifically, it looks for the use of 'Get-Process' (or its alias 'gps') piped to 'Where-Object' (or its alias '?') to filter processes based on keywords commonly associated with security products such as 'avira', 'carbonblack', 'cylance', 'defender', 'kaspersky', 'malware', 'sentinel', 'symantec', and 'virus'. The filtering can be applied to process properties like Company, Description, Name, Path, or Product. This activity is indicative of an adversary attempting to enumerate defensive tools present on the system.
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 the execution of 'Advanced Port Scanner' based on its image name, original file name, description, or specific command-line arguments. This tool is often used for network reconnaissance.
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