Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects 7-Zip (7z.exe / 7zG.exe) writing executable files to user-accessible directories, potentially leveraging CVE-2026-46331. This vulnerability allows an adversary to manipulate the Zone.Identifier Alternate Data Stream (ADS) of extracted files by embedding a crafted RAR5 stream, effectively setting the ZoneId to 0 (My Computer) and bypassing Windows SmartScreen warnings upon subsequent execution.
Detects the presence and execution of the 'mybb_limited_acp_to_admin' PoC script, as well as suspicious child process creation originating from web server or PHP processes when the command line includes 'admincp'. This is indicative of potential web exploitation or the use of a web shell within the MyBB Administrative Control Panel environment.
Detects the creation or modification of shell script files within known Linux system persistence directories ('/etc/profile.d/' and '/usr/local/lib/') that contain specific naming patterns (' .sh.local' or '.cache-update.sh'). This activity often indicates an attempt to establish persistence or inject code that executes upon user logon or system initialization.
Detects the Chromelevator loader, identified as 'drun.exe', performing reflective DLL injection of 'payload.dll' using direct syscalls (NtAllocateVirtualMemory, NtCreateThreadEx) and inter-process communication (IPC) via a named pipe ('__DLL_PIPE_COMPLETION_SIGNAL__'). The rule looks for process creation, remote thread creation, memory protection modifications, file creation/modification of 'payload.dll', and specific named pipe events associated with 'drun.exe'.
This rule detects the deployment and activity associated with the TrueSightKiller rootkit, potentially used by threat actors like SilverFox. It identifies several key indicators: the loading of 'truesight.sys' from non-standard directories, the creation of a staging file named 'ranchserv.jpg' in the Windows Temp directory by non-system processes, the presence of the 'truesight.sys' driver based on its known SHA256 hash, and the termination of security products shortly after the creation of TrueSightKiller-related artifacts.
Detects suspicious activity on Cisco SD-WAN infrastructure (vManage, vSmart, vBond) associated with unauthorized configuration changes, potential exploitation of CVE-2026-20245, rogue account creation, and anti-forensic behaviors.
Detects a multi-stage attack pattern associated with the Qilin ransomware, beginning with suspicious VPN authentication (potential credential stuffing or bypass), moving through lateral movement attempts (SMB/RDP/WMI), and culminating in ransomware behaviors such as shadow copy deletion, mass file encryption, and ransom note creation.
Detects the creation or modification of '.config' or '.exe.config' files within commonly user-writable directories such as AppData, Temp, Downloads, or Desktop. These files are often used by .NET applications to define behavior, and attackers may manipulate them to perform activities such as assembly redirection, loading malicious DLLs, or altering security settings for elevated processes.
This rule detects potentially malicious lateral movement or persistence activities by monitoring the creation or modification of executable files in remote network shares and startup folders, as well as the use of administrative tools like sc.exe or schtasks.exe to create services or tasks. The rule specifically filters out processes signed by Microsoft, focusing on non-standard or unsigned binaries that perform these administrative actions across multiple instances, indicating potential automated lateral propagation.
Detects modifications or renames to critical Windows accessibility feature binaries (sethc.exe, utilman.exe, osk.exe, magnify.exe) located in System32. Adversaries frequently replace these binaries with malicious counterparts or command shells to achieve persistence and gain SYSTEM-level execution via accessibility shortcuts at the logon screen.
Detects suspicious activity related to the Print Spooler service (spoolsv.exe), specifically focusing on the spawning of known command-line interpreters (cmd.exe, powershell.exe, rundll32.exe) by spoolsv.exe, as well as the creation or modification of DLL files within the system print spool drivers directory by processes other than spoolsv.exe. This activity is often associated with privilege escalation and persistence techniques involving print spooler service abuse.
Detects when a non-root user modifies, creates, or renames files within common cron directories or the main crontab file on Linux systems. This activity can indicate an attempt to establish persistence or schedule malicious tasks.
Detects modifications to the AdminSDHolder object in Active Directory via Windows Security Event ID 5136. The AdminSDHolder object maintains the security permissions for all objects protected by the AdminSDHolder process. Adversaries often modify this object to establish persistence and gain unauthorized access to highly privileged accounts within the domain.
Detects modification of macOS TCC database to grant unauthorized permissions
Detects the creation or modification of a large file named 'logs.dat' (100KB or greater) within common user-related directories such as AppData, Temp, Users, or Documents. This pattern can indicate data staging for exfiltration, where an adversary collects sensitive information into a single file before attempting to move it off the system.
This rule detects potential wiper activity by monitoring for high-frequency deletion or modification of specific file types (e.g., .docx, .xlsx, .pdf, .db, .bak) within a short window. It triggers when a process like PowerShell or Cmd is observed executing destructive commands (e.g., 'del', 'erase', 'Remove-Item') on a large number of files across multiple directories, which is a common behavior of malware attempting to destroy data.
This rule detects a sequence of suspicious activities: the creation or modification of an executable file (.exe or .dll) within a directory path containing update-related keywords, followed by the execution of a file in that same location, and culminating in an outbound network connection from that process. This pattern is characteristic of a software supply chain compromise or an adversary deploying a malicious payload via a fake or compromised update mechanism.
Detects the use of the Windows attrib.exe command with the +h (hidden) attribute flag applied to files within the AppData\Roaming or AppData\Local directories. This behavior is commonly associated with malware attempting to hide malicious components for persistence or evasion.
Identifies file, registry, network, and process indicators associated with the @mastra/* npm supply chain compromise. This rule detects the presence of specific malicious files, registry modifications for persistence, outbound network connections to known command and control (C2) infrastructure, and the execution of malicious scripts related to the attack.
Detects anomalous file modifications to web-accessible directories (such as index.html, dist, public, or wwwroot) by common JavaScript execution environments including node.exe, bun.exe, or npm. This activity is consistent with post-compromise tampering of web assets as observed in the Miasma/Hades campaign, likely involving the abuse of stolen repository credentials to deploy malicious content.
Detects the obfuscated 'setup.cjs' dropper associated with the easy-day-js npm supply chain attack. The rule identifies unique obfuscated variable names, XOR-encoded marker bytes, and specific campaign-related strings, including postinstall commands, package names, second-stage payload filenames, self-deletion patterns, and TLS bypass indicators.
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