Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
3,615 detections
Filters
Last updated
All Time
Detection languages
1,725
690
266
214
190
Contributors
985
505
494
256
209
Categories
814
787
730
629
473
Platforms
2,071
629
488
459
346
Products / Services
769
666
527
195
185
MITRE Techniques
18,123
15,639
12,581
8,394
6,215
3,615
CVEs
14
10
5
4
3
IDS Classtypes
73
48
35
10
5
IDS Protocols
119
22
19
10
4
Detects a sequence of events indicative of data exfiltration: an unknown process creates an image file in a temporary folder, followed by the creation of an archive file (ZIP/RAR) by the same or a related process within 10 minutes, and concludes with a successful outbound network connection to a non-private IP address from the same device.
Detects real-time Multi-Factor Authentication (MFA) OTP relay, commonly associated with Adversary-in-the-Middle (AitM) phishing frameworks like Bluekit. The rule flags successful sign-ins where MFA methods (SMS, TOTP, or Authenticator app) are completed with an abnormally low latency (under 10 seconds), suggesting automated relay, or where discrepancies exist in session context indicative of proxy-based interception.
Lists all users who recently enabled Out-of-Office along with their latest sign-in activity. SOC analysts can reference this when triaging unfamiliar sign-in or impossible travel alerts to quickly determine if the user is on vacation.
Detects instances where the Outlook process (OUTLOOK.EXE) initiates a network connection via port 445 (SMB) to an IP address that is not part of the internal private network ranges. This activity is highly anomalous for an email client and may indicate exploitation, data exfiltration, or attempts to relay NTLM credentials to a remote malicious SMB server.
Detects suspicious access to browser credential stores (Google Chrome, Microsoft Edge, Mozilla Firefox, Brave) by non-browser processes within a short time frame (2 hours) after a FortiClient VPN logon event. This activity is consistent with information stealer malware, such as LummaC2, Phantom Stealer, Aurora Stealer, Luca Stealer, and Formbook, often observed in post-compromise phases of campaigns like FortiBleed.
This detection identifies a pattern associated with the "ClickFix" social engineering technique, where a user is tricked into copying a malicious command and pasting it into a PowerShell terminal. The query correlates a recent clipboard operation with a subsequent suspicious PowerShell execution by the same user on the same device.
Detects the execution of known NTLM relay and credential harvesting tools such as Responder, Inveigh, and PetitPotam, or suspicious command-line patterns involving the use of 'net use' or common Windows binaries (e.g., powershell.exe, rundll32.exe) to access or force SMB authentication with remote IP addresses.
This rule monitors DNS queries and network connections for access to a set of known domain names associated with Adversary-in-the-Middle (AiTM) phishing infrastructure. It correlates data from DNS events, device network logs, and virtual machine network connections to identify potential interactions with malicious phishing sites typically used to capture user credentials or session tokens.
This rule monitors DNS queries and network connections for access to a set of known domain names associated with Adversary-in-the-Middle (AiTM) phishing infrastructure. It correlates data from DNS events, device network logs, and virtual machine network connections to identify potential interactions with malicious phishing sites typically used to capture user credentials or session tokens.
Detects bulk file access, download, or sync operations by a single user account within a 30-minute window in Microsoft SharePoint Online or OneDrive for Business. This behavior is indicative of potential data exfiltration or unauthorized mass collection of sensitive information.
Detects SSPI hooking used to intercept authentication credentials
Detects JavaScript keyloggers capturing form field input on web pages
Detects upload of encrypted archive files indicating staged exfiltration
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.
Detects the creation or modification of an email compliance or forwarding rule containing the specific typo "Patroit". This indicator is associated with the UNC6508 threat actor's data exfiltration activities via silently BCC-forwarding sensitive emails.
Detects instances where a user successfully authenticates using Multi-Factor Authentication (MFA) from one location, followed by a Single-Factor Authentication (SFA) logon from a different location within a 10-minute window. This behavior is indicative of potential session hijacking or session cookie theft where an attacker reuses an authenticated session or manipulates the authentication flow to bypass MFA requirements.
Tracks the Kali365 tool iterating through the victim's inbox, performing mass mail item reads or API-driven exports of mailbox contents.
Detects activity associated with the Lightlife RAT, which involves PowerShell scripts accessing cryptocurrency wallet browser extension directories, staging data using archive utilities, and exfiltrating collected data to external destinations like the Telegram Bot API.
Detects the unauthorized access of sensitive files (browser data, SSH keys, AWS credentials) followed by the creation of archives using common utilities (7zip, tar, zip) by processes spawned within npm/node.exe/powershell/wscript/chost.exe postinstall execution chains. This behavior is associated with credential theft and data staging for exfiltration, notably seen in campaigns like Operation Friday Harvest.
Detects anomalous AWS API activity immediately following a successful ConsoleLogin event for the same user. This behavior is indicative of a session replay attack, often associated with AiTM phishing kits like PoisonSeeds, where a victim's session cookie is harvested and immediately reused by an attacker to programmatically access the AWS environment.
Detects anomalous authentication behavior consistent with an Adversary-in-the-Middle (AiTM) attack, where a single user account triggers multiple MFA challenge requests from distinct source IP addresses within a two-minute window. This behavior is indicative of an adversary proxying authentication requests in real-time between the user and a legitimate service.
Page 90 of 173