nomit vyas
@xoxoTrusted contributorCompletionist
4 followers1,278 downloads993 copies13 likes36,821 views
694 detections
Filters
Last updated
All Time
Detection languages
356
151
63
46
45
Categories
237
204
109
106
102
Platforms
469
83
62
48
41
Products / Services
192
50
41
39
22
MITRE Techniques
253
215
154
142
138
CVEs
3
3
3
3
3
IDS Classtypes
2
1
1
1
IDS Protocols
3
1
1
Detects the creation of a Windows Scheduled Task with command line arguments indicative of the Potemkin Loader, which uses task scheduling to maintain persistence by executing an RMM payload located in the AppData directory upon system startup or user logon.
This rule detects attempts to tamper with Windows Defender services (WinDefend, SecurityHealthService, wscsvc) by stopping or disabling them. It covers actions performed via 'sc.exe' commands, 'Set-Service' PowerShell cmdlets, and direct modification of registry keys related to these services. The rule specifically filters out legitimate system and TrustedInstaller processes when detecting registry modifications to reduce false positives.
This rule detects the use of the JSON-RPC 'eth_call' method by non-browser processes during network connection events. It specifically looks for network connections where the initiating process is not a common web browser (Chrome, Edge, Firefox) and the network traffic or command line contains the 'eth_call' method. This behavior is indicative of malware or other malicious software attempting to interact with blockchain services, potentially for dynamic command and control or address resolution, as described in the Check Point research.
Detects messages sent or chats created by external/guest users in Microsoft Teams where the sender's name or user ID impersonates IT or support personnel, indicating a potential phishing attempt.
Detects browser connections to the Bing Search by Image endpoint, which can be exploited as a Server-Side Request Forgery (SSRF) proxy to bypass Content Security Policies (CSP) and exfiltrate data, as seen in the SearchLeak attack. The rule specifically looks for connections to 'bing.com/images/searchbyimage' that also include the 'imgurl=' or 'imgurl%3d' parameter, indicating an attempt to use Bing's server-side image fetching capability.
Detects the modification or termination of critical Windows security services using the Service Control utility (sc.exe). Attackers frequently disable Defender and associated security center services to allow undetected payload execution.
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 C2, pentest lab, credential validation, and sniffer nodes. Monitoring these connections can help identify compromised systems communicating with FortiBleed infrastructure.
Detects processes associated with Remcos RAT or processes with names matching a GST.*.com pattern that are attempting to capture user input by looking for specific API calls or keywords related to keylogging in the process command line. This could indicate an attempt to steal credentials or other sensitive information.
This rule detects successful OAuth logins originating from IP addresses identified as residential proxies. This behavior can indicate an adversary attempting to bypass geo-restrictions or obscure their true location, potentially as part of a credential stuffing attack, account takeover, or to evade detection.
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 C2, pentest lab, credential validation, and sniffer nodes.
Page 24 of 70