Browse Rules

Search and filter across all detection sources

16 rules

yara unknown yara

FE_PCAPs [utils]

All pcaps uploaded to VT

yara unknown yara

pcap_positives [utils]

All pcaps uploaded to VT with +3 detection rate

hayabusa medium sigma

Windows Pcap Drivers

Detects Windows Pcap driver installation based on a list of associated .sys files.

sigma medium sigma

Windows Pcap Drivers

Detects Windows Pcap driver installation based on a list of associated .sys files.

yara unknown yara

ek_submissions [utils]

Detects pcaps uploaded to VT and matches IDS detections for Exploit kits

yara unknown yara

ek_submissions_2 [utils]

Detects pcaps uploaded to VT and matches IDS detections for Exploit kits

car unknown other

SMB Session Setups

Account usage within SMB can be used to identify compromised credentials, and the hosts accessed with them. This analytic monitors SMB activity that deals with user activity rather than file activity.

car unknown other

Remote Registry

An adversary can remotely [manipulate the registry](https://attack.mitre.org/techniques/T1112) of another machine if the RemoteRegistry service is enabled and valid credentials are obtained. While the registry is remotely accessed, it can be used to prepare a [Lateral Movement](https://attack.mitre.org/tactics/TA0008) technique, [discover](https://attack.mitre.org/tactics/TA0007) the configuration of a host, achieve [Persistence](https://attack.mitre.org/tactics/TA0003), or anything that aids an

car unknown other

Remotely Launched Executables via WMI

Adversaries can use [Windows Management Instrumentation (WMI)](https://attack.mitre.org/techniques/T1047) to move laterally by launching executables remotely. For adversaries to achieve this, they must open a WMI connection to a remote host. This RPC activity is currently detected by [CAR-2014-11-007](../CAR-2014-11-007). After the WMI connection has been initialized, a process can be remotely launched using the command: `wmic /node:"<hostname>" process call create "<command line>"`, which is de

sigma high sigma

OMIGOD HTTP No Authentication RCE - CVE-2021-38647

Detects the exploitation of OMIGOD (CVE-2021-38647) which allows remote execute (RCE) commands as root with just a single unauthenticated HTTP request. Verify, successful, exploitation by viewing the HTTP client (request) body to see what was passed to the server (using PCAP). Within the client body is where the code execution would occur. Additionally, check the endpoint logs to see if suspicious commands or activity occurred within the timeframe of this HTTP request.

car unknown other

SMB Events Monitoring

[Server Message Block](https://en.wikipedia.org/wiki/Server_Message Block) (SMB) is used by Windows to allow for file, pipe, and printer sharing over port 445/tcp. It allows for enumerating, and reading from and writing to file shares for a remote computer. Although it is heavily used by Windows servers for legitimate purposes and by users for file and printer sharing, many adversaries also use SMB to achieve [Lateral Movement](https://attack.mitre.org/tactics/TA0008). Looking at this activity m

car unknown other

Remotely Scheduled Tasks via Schtasks

An adversary can [move laterally](https://attack.mitre.org/tactics/TA0008) using the `schtasks` command to remotely [schedule tasks/jobs](https://attack.mitre.org/techniques/T1053). Although these events can be detected with command line analytics [CAR-2013-08-001](../CAR-2013-08-001), it is possible for an adversary to use the API directly, via the Task Scheduler GUI or with a scripting language such as [PowerShell](https://attack.mitre.org/techniques/T1059/001). In this cases, an additional so

car unknown other

SMB Write Request

As described in [CAR-2013-01-003](../CAR-2013-01-003), SMB provides a means of remotely managing a file system. Adversaries often use SMB to move laterally to a host. SMB is commonly used to upload files. It may be used for staging in [Exfiltration](https://attack.mitre.org/tactics/TA0010) or as a [Lateral Movement](https://attack.mitre.org/tactics/TA0008) technique. Unlike SMB Reads, SMB Write requests typically require an additional level of access, resulting in less activity. Focusing on SMB

car unknown other

Remotely Scheduled Tasks via AT

When AT.exe is used to remotely [schedule tasks](https://attack.mitre.org/techniques/T1053), Windows uses named pipes over [SMB](https://en.wikipedia.org/wiki/Server_Message_Block) to communicate with the API on the remote machine. After authentication over SMB, the Named Pipe "ATSVC" is opened, over which the JobAdd function is called. On the remote host, the job files are created by the Task Scheduler and follow the convention `C:\Windows\System32\AT<job\_id>`. Unlike [CAR-2013-05-004](../CAR-

car unknown other

Remote Windows Management Instrumentation (WMI) over RPC

As described in ATT&CK, an adversary can use [Windows Management Instrumentation](https://attack.mitre.org/techniques/T1047) (WMI) to view or manipulate objects on a remote host. It can be used to remotely edit configuration, start services, query files, and anything that can be done with a WMI class. When remote WMI requests are over RPC ([CAR-2014-05-001](../CAR-2014-05-001)), it connects to a DCOM interface within the RPC group netsvcs. To detect this activity, a sensor is needed at the netwo

car unknown other

SMB Copy and Execution

An adversary needs to gain access to other hosts to move throughout an environment. In many cases, this is a twofold process. First, a file is remotely written to a host via an SMB share (detected by [CAR-2013-05-003](../CAR-2013-05-003)). Then, a variety of [Execution](https://attack.mitre.org/tactics/TA0002) techniques can be used to remotely establish execution of the file or script. To detect this behavior, look for files that are written to a host over SMB and then later run directly as a p