Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects instances where the OneDrive sync client process creates files on drives other than the system drive (e.g., D: drive and beyond). This pattern is often used to identify potentially suspicious file synchronization activities or the use of secondary storage locations that may deviate from baseline OneDrive configurations.
Detects Invoke-Mimikatz PowerShell script and alike. Mimikatz is a credential dumper capable of obtaining plaintext Windows account logins and passwords.
Detects instances where base64-encoded PHP code, obfuscated behind a 'data:image/gif;base64' MIME type prefix, is written to the disk as a .php file or initiated by web server processes. This pattern is commonly used in file upload bypass attacks to execute arbitrary code.
Detects modifications to the 'metrics_interval' registry value within the 'Software\SynapseAgent' key. This activity suggests configuration changes to the SynapseAgent, which could indicate tampering with agent telemetry or polling frequency.
Detects the modification or creation of the 'SealedConfig' value within the 'Software\synapse\Config' registry key, correlated with the deletion of a 'config.toml' file on the same device. This pattern may indicate an adversary tampering with Synapse software configuration or attempting to remove audit/configuration trails.
This rule detects modifications to Windows Registry persistence keys (Run and RunOnce) associated with specific suspicious filenames ('cplsupport.exe', 'wtass.exe'), as well as modifications to specific Synapse agent configuration registry keys. These patterns are often associated with persistence mechanisms or unauthorized software configuration changes.
This rule monitors DNS queries and network connection events for interactions with a list of domains associated with the Kali365 infrastructure. It flags activity by identifying both direct matches and subdomains associated with 'ssengineers.com' and 'clientengagenow.de', often used in phishing or C2 communications.
Detects the use of the Windows 'diskpart' utility combined with a script or command execution containing 'clean all', which performs a destructive multi-pass overwrite of disk data structures to render it irrecoverable. This behavior is typically associated with malicious data destruction or wiping activities.
Detects the execution of vssadmin.exe to delete volume shadow copies or attempts to clear recovery-related directories such as SoftwareDistribution or Windows.old. This behavior is indicative of ransomware or destructive activity aimed at inhibiting system recovery.
Detects the use of 'bootsect.exe' with parameters specifically designed to overwrite the Master Boot Record (MBR) and the targeting or modification of 'winload.efi', which is indicative of destructive boot-level attacks or bootkit deployment attempts.
Detects suspicious activity related to the Windows Subsystem for Linux (WSL), such as installing new distributions (especially penetration testing ones like Kali), importing custom images, or executing commands non-interactively. Attackers may use WSL to run malicious Linux binaries, hide artifacts, and evade defenses.
Detects instances where 'ERAAgent.exe', part of the ESET Remote Administrator agent, loads the 'dpapi.dll' library from a location outside of standard Windows System directories (System32 or SysWOW64). Furthermore, the rule flags this behavior if the loaded 'dpapi.dll' file is either unsigned or contains an untrusted digital signature, which may indicate a malicious DLL side-loading or masquerading attempt to access protected system credentials.
This rule detects the use of raw sockets by 'ERAAgent.exe' by monitoring for socket I/O control (Ioctl) operations involving 'SIO_RCVALL'. This configuration, often associated with promiscuous mode, allows an application to capture all network traffic received by the network interface, a behavior commonly used by network sniffing tools or malicious implants to intercept sensitive data.
Detects the ESET Remote Administrator (ERAAgent.exe) process loading the 'dpapisvc.dll' module. This behavior is indicative of potential DLL side-loading where an attacker places a malicious DLL with the same name as a legitimate system library in the agent's directory to achieve code execution.
Detects behavior where the ERAAgent process writes a file to disk and executes that same file shortly after (within 5 minutes). This pattern is consistent with staged payload delivery, decompression, or assembly often observed in malicious activity, specifically referencing SLEEPWALKER malware patterns.
This rule detects potentially malicious memory manipulation and thread execution activity originating from the ERAAgent.exe process. It specifically identifies when ERAAgent.exe calls VirtualProtect or VirtualAlloc to set memory as PAGE_EXECUTE_READWRITE, followed shortly by a CreateThread or CreateRemoteThread operation. This behavior is indicative of process injection or reflective code loading, where an executable image is manually mapped into memory and executed, bypassing traditional file-based detection.
Detects the ESET Management Agent (ERAAgent.exe) initiating outbound network connections using non-standard socket families, specifically AF_VSOCK (virtual socket) or VMCI (Virtual Machine Communication Interface). These interfaces are typically used for inter-process communication between a host and a guest virtual machine, or between guest virtual machines, and may indicate malicious activity such as lateral movement from a virtualized environment, virtual machine escape attempts, or unauthorized communication within an ESXi host environment.
Detects ERAAgent.exe performing suspicious dynamic API resolution for functions commonly used by the SLEEPWALKER malware (VirtualProtect, SetSecurityDescriptorDacl, and CryptGenRandom). By resolving these functions at runtime via GetProcAddress rather than including them in the static import table, the malware attempts to evade detection and analysis.
Detects ERAAgent.exe (ESET Remote Administrator Agent) interacting with suspicious named pipes (e.g., mojo, spoolss) and attempts to extract credentials from command line parameters, indicating potential credential dumping or lateral movement techniques using the agent process.
Detects a suspicious pattern associated with the SLEEPWALKER technique, involving multiple memory write operations followed by a memory protection change within an ERAAgent.exe process. This behavior suggests code injection or dynamic code loading within a process.
This rule detects suspicious file system activity (creation, modification, or renaming) performed by the ESET Remote Administrator (ERA) Agent process, excluding files within standard ESET installation and ProgramData directories. This behavior may indicate an adversary attempting to leverage the legitimate ERA agent to perform unauthorized file operations or masquerading as the agent.
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