nomit vyas
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694 detections
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Detects when a user grants consent to a third-party application via the OAuth consent framework, specifically looking for grants that include highly privileged permissions such as Mail.ReadWrite, Contacts.Read, or offline_access. This can indicate a compromised user account being used to establish persistence or gain further access through a malicious application.
Detects when a known OpenClaw AI agent process spawns a shell to download and immediately execute a script. This is a common pattern used by malicious "Skills" to establish persistence or run further payloads, as detailed in the NSFOCUS report.
Detects the execution of S3 Browser or Office installation executables, followed by network traffic from the same host to known cloud storage or file-sharing sites within a short time window. This behavior aligns with Muddled Libra's method of staging and exfiltrating sensitive data, such as PST files, to adversary-controlled cloud buckets.
Detects the use of the Windows 'finger' utility, often renamed to 'ct.exe', to download and pipe remote commands to cmd.exe. This is a key LoLBin technique used in the CrashFix campaign.
This rule detects the execution of suspicious processes ('servertool.exe' or 'encrypt.exe') within 60 minutes of an inbound RDP connection being accepted on a device. This could indicate an adversary establishing remote access and then deploying tools for further compromise, such as data exfiltration or encryption for ransomware.
This rule detects the execution of suspicious executables ('servertool.exe', 'encrypt.exe') when their command line arguments contain references to common cloud storage services (OneDrive, SharePoint, GoogleDrive, Dropbox, iCloud). This pattern could indicate an attempt to exfiltrate data to cloud storage or encrypt data for impact, potentially as part of a ransomware attack.
Smbexec Lateral Movement
YARA-L
Detects the command line pattern characteristic of Impacket's SMBExec, involving echoing a payload to a temporary batch file, executing, and deleting it.
This rule detects network connections to known IP addresses associated with the FortiBleed vulnerability exploitation. These IP addresses have been categorized based on their observed roles in FortiBleed attacks, including aggregator/C2, pentest lab, credential validation, and sniffer nodes. Monitoring these connections can help identify compromised systems or active exploitation attempts related to FortiBleed.
Detects the creation or loading of the vulnerable EnCase forensic driver 'OemHwUpd.sys'. This driver is being exploited in Bring Your Own Vulnerable Driver (BYOVD) attacks to terminate security products.
Detects attempts to modify or delete Microsoft Graph API conditional access policies. This could indicate an adversary attempting to weaken security controls to facilitate unauthorized access or persistence.
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