Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Correlates an interactive MFA-satisfied user sign-in with a subsequent non-interactive or token-based successful authentication from a different IP address and country within a short time window for the same user and application. This pattern is indicative of adversary-in-the-middle (AitM) phishing attacks where session cookies or tokens are intercepted and replayed.
Detects a potential password spraying attack characterized by multiple authentication failures across numerous users from a single IP address, followed by a successful sign-in from that same IP, culminating in a privileged role or credential change performed by the compromised account.
Detects execution of Mimikatz or LSASS process memory credential theft techniques that are preceded by common discovery tools (such as nltest, net, adcmd, netexec, or kerbrute) on the same device within a 24-hour window.
Detects Microsoft 365 token replay from the Huntress token spray and replay campaign. Alerts on sign-ins from an IP new to the account (not seen on 3 or more distinct days in the 14d baseline) that match one of three behaviors: a scripted client (node or bare Mozilla/5.0 user agent with Office or Authentication Broker client IDs), Device Registration Service access (Medium-High only when corroborated by a campaign IP, scripted user agent or session IP hop, otherwise Low), or one session moving across IPs within 60 minutes. Rows are raised to High when the same new IP hits 3 or more baseline accounts in the window (token spray pattern) or matches a campaign IOC. Low Signal rows are dropped when AlertOnly = true. Does not cover MFA changes, device registration events or inbox rules.
Detects potential staging and execution of files from the Microsoft Vault directory within AppData, often associated with adversary tooling or credential theft.
Detects processes accessing or enumerating multiple cryptocurrency wallet files or directories across common storage paths (e.g., Exodus, Electrum, Coinomi, Ethereum, Atomic, Guarda) within a short timeframe, which is often indicative of wallet theft or credential harvesting malware.
Detects the execution of two or more distinct Active Directory discovery, credential extraction, or coercion tools (such as NetExec, Kerbrute, noPac, PetitPotam, SoftPerfect Network Scanner, or Impacket scripts) on the same device within a 1-hour window.
Detects AWS OIDC role assumption by a GitHub workflow running on a ci-sync-<6 chars> branch followed within an hour by Secrets Manager reads using the same session credentials, as seen in the Gheist campaign.
Detects an SSH process establishing local port forwarding to a Unix socket (such as docker.sock) or a path containing a socket, followed shortly after (within 15 minutes) by non-administrative tool access to sensitive files like /etc/shadow or Docker sockets on the same device.
Detects PaperCut server processes (such as pc-app.exe, pc-server.exe, or Java running PaperCut) spawning command shells or utility binaries associated with credential dumping, internal reconnaissance, or pivoting.
Detects password spraying activity against Azure Active Directory / Microsoft 365 services where a single source IP attempts to authenticate against numerous distinct user accounts with low attempt counts per account and sustained over time, while excluding successful authentication IPs.
Detects access to Chrome or Chromium-based browser Local State files (which contain encrypted keys) by a non-browser process that correlates temporally with a PowerShell process exhibiting ClickFix-style staging characteristics (hidden window, bypass execution policy, and containing a URL).
Detects a suspicious sequence where a client IP performs a brute-force attack against WordPress login or XML-RPC endpoints followed by enumeration of the wp-json REST API.
Correlates per-device reads of .env secret files by utility commands (such as cat, grep, findstr) with subsequent or preceding Prisma Studio or database activity within a 30-minute window, indicating potential credential theft or unauthorized database management tool usage.
Detects when Node.js or NPM processes access sensitive credential files such as .npmrc, SSH private keys, or AWS credentials, followed by an outbound public network connection from the same device within a 15-minute window.
Detects a single non-browser process accessing the 'Web Data' files of multiple different web browser families within a short timeframe, which is indicative of credential harvesting or browser stealer activity.
Detects password spraying: a single source IP generating failed
logins against many distinct accounts in a short window. AI-assisted planning
can produce low-rate credential attacks designed to stay under per-account
lockout thresholds; the distinguishing signal is breadth across users rather
than volume per user.
logins against many distinct accounts in a short window. AI-assisted planning
can produce low-rate credential attacks designed to stay under per-account
lockout thresholds; the distinguishing signal is breadth across users rather
than volume per user.
Detects a single external source IP reading secrets and configmaps across multiple Kubernetes namespaces in bulk within a 1-hour window, which may indicate reconnaissance or credential theft.
Detects credential harvesting tooling and activity targeting PaperCut configuration and log files by identifying specific parser script executions, searches for PaperCut credential key patterns in process command lines, and the creation of related harvest artifacts.
Detects potential password spraying behavior in Entra ID sign-in logs, characterized by a single source IP attempting authentication against numerous distinct user accounts with a low number of attempts per user.
Detects Entra sign-ins from infrastructure tied to the ConnectWise Cloud Backup (SkyKick) credential abuse: 144.172.64[.]128 (Huntress), plus 144.172.64[.]99 and 144.172.64[.]60 (ConnectWise advisory, Oct 18). Covers service principal sign-ins and user sign-ins, which captures the Oct 13-14 password spray. A success means a token was issued, so treat it as an incident. Failures still show targeting.
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