Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the execution of DragonForce ransomware binary or its associated event log clearing batch script, as observed in attacks leveraging SimpleHelp vulnerabilities.
This rule detects attempts by a device to resolve specific domain names known to be associated with ransomware killswitches. Successful resolution of these domains could indicate a ransomware infection attempting to halt its encryption process.
This rule detects an unusually high volume of file deletion events on a device within a short time frame (100 or more files deleted within a 5-minute window). This activity can be indicative of malicious behaviors such as ransomware encrypting and deleting original files, data wiping attacks, or an adversary attempting to remove forensic evidence by deleting logs or other critical files.
Detects multiple registry value set events where the registry value data contains keywords like 'ransom' or 'payment', or the registry key contains 'Run'. This behavior can indicate ransomware activity attempting to establish persistence or communicate its demands.
Detects the creation of a file named '__RestoreYourFiles__.txt' within the Microsoft Word STARTUP folder. This file name and location are commonly associated with ransomware activity, specifically the BlackByte ransomware, which drops this file as a ransom note.
Detects file encryption activity associated with Prinz Eugen ransomware by monitoring for newly created files with the '.prinzeugen' extension and a significant total file size increase within a short period.
This rule detects network connections to remote URLs containing specific keywords ('festung', 'germania', 'deutsch', 'prinz', 'eugen') that are indicative of Germany-themed infrastructure potentially associated with the Prinz Eugen Ransomware. This helps identify early communication with command and control servers or data exfiltration points.
Detects file encryption activity associated with Prinz Eugen ransomware by monitoring for newly created files with the '.prinzeugen' extension and a significant total file size increase within a short period.
This rule detects the presence of files on devices that match known ransomware SHA256 hashes. It filters out common system processes (explorer.exe, svchost.exe, system.exe) as initiating processes to reduce false positives.
This rule detects the presence of files on devices that match known ransomware SHA256 hashes. It filters out common system processes (explorer.exe, svchost.exe, system.exe) as initiating processes to reduce false positives.
This rule detects suspicious file activity indicative of Prinz Eugen ransomware. It looks for the creation of multiple files (100 or more) with the '.prinzeugen' extension and a file size of at least 1KB, which suggests encryption activity.
This rule detects network connections to remote URLs containing specific keywords ('festung', 'germania', 'deutsch', 'prinz', 'eugen') that are indicative of Germany-themed infrastructure potentially associated with the Prinz Eugen Ransomware. This helps identify early communication with command and control servers or data exfiltration points.
This rule detects potential ransomware activity by monitoring Windows Security Event ID 4657 (Registry Value Modified) for specific keywords commonly associated with ransomware notes or demands. It looks for terms like 'ransom', 'payment', 'decrypt', 'unlock', 'bitcoin', and 'monero' within the new value of a modified registry key, specifically within the 'Run' or 'Software' registry paths. This could indicate a ransomware variant attempting to establish persistence or store its ransom note details in the registry.
This rule detects the presence of files on devices that match known ransomware SHA256 hashes. It filters out common system processes (explorer.exe, svchost.exe, system.exe) as initiating processes to reduce false positives.
This rule detects potential ransomware activity by monitoring Windows Security Event ID 4657 (Registry Value Modified) for specific keywords commonly associated with ransomware notes or demands. It looks for terms like 'ransom', 'payment', 'decrypt', 'unlock', 'bitcoin', and 'monero' within the new value of a modified registry key, specifically within the 'Run' or 'Software' registry paths. This could indicate a ransomware variant attempting to establish persistence or store its ransom note details in the registry.
This rule detects an unusually high volume of file deletion events on a device within a short time frame (100 or more files deleted within a 5-minute window). This activity can be indicative of malicious behaviors such as ransomware encrypting and deleting original files, data wiping attacks, or an adversary attempting to remove forensic evidence by deleting logs or other critical files.
Detects multiple registry value set events where the registry value data contains keywords like 'ransom' or 'payment', or the registry key contains 'Run'. This behavior can indicate ransomware activity attempting to establish persistence or communicate its demands.
This rule detects an unusually high volume of file deletion events on a device within a short time frame (100 or more files deleted within a 5-minute window). This activity can be indicative of malicious behaviors such as ransomware encrypting and deleting original files, data wiping attacks, or an adversary attempting to remove forensic evidence by deleting logs or other critical files.
Detects multiple registry value set events where the registry value data contains keywords like 'ransom' or 'payment', or the registry key contains 'Run'. This behavior can indicate ransomware activity attempting to establish persistence or communicate its demands.
This rule detects attempts by a device to resolve specific domain names known to be associated with ransomware killswitches. Successful resolution of these domains could indicate a ransomware infection attempting to halt its encryption process.
This rule detects attempts by a device to resolve specific domain names known to be associated with ransomware killswitches. Successful resolution of these domains could indicate a ransomware infection attempting to halt its encryption process.
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