Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

137 detections

Detects ScreenConnect/ConnectWise Control malware installer MSI and components
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Daniel Jeremiah@daniyyell
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Detections.ai Community
9 months ago
4311,414
Detects the execution of a process named 'code.exe' or 'lightshot.exe' from a temporary directory.
This behavior was observed in a campaign involving a malicious VS Code extension, "ClawdBot Agent", which impersonates a legitimate AI coding assistant.
The extension drops and executes a weaponized ScreenConnect payload, masquerading it as a legitimate VS Code or Lightshot process to evade detection.
The execution is often spawned by the legitimate VS Code process.
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Tim Peck@timpeck
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Detections.ai Community
9 months ago
170187
Detects emails containing threat-actor lure links to trojanized ScreenConnect MSI files, specifically targeting 'cld.pt' downloads with 'COMPROBANTE*.msi' patterns. The rule also looks for 'COMPROBANTE' keywords in email subjects as a fallback.
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Daniel Jeremiah@daniyyell
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Detections.ai Community
9 months ago
284278
Detects the creation or execution of files matching known malicious SHA256 hashes associated with a weaponized ScreenConnect installer and a Rust-based loader. This rule identifies the presence of specific known malicious binaries on endpoints.
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
9 months ago
640161
Detects the creation of executable files (.exe, .dll) in the `%TEMP%\Lightshot` directory. This directory is used as a staging area by the malicious fake Clawdbot VS Code extension to drop its payloads, including a weaponized ScreenConnect client.
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nomit vyas@xoxo
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Detections.ai Community
9 months ago
4077
This rule detects the creation of a process where the parent process is 'node.exe' (associated with Node.js, often used by VS Code extensions) and the child process is either 'ScreenConnect.ClientService.exe' or has 'ScreenConnect' in its command line. This behavior could indicate a VS Code extension spawning a ScreenConnect remote access tool, which might be malicious.
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
9 months ago
7072
Detects instances where a ScreenConnect client or installer process is spawned by a web browser or email client. This behavior is indicative of a social engineering attack where a user is tricked into downloading and executing a rogue Remote Monitoring and Management (RMM) tool.
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Tim Peck@timpeck
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Detections.ai Community
10 months ago
152188
Detects the execution of ScreenConnect, a legitimate remote access tool, when it is used to establish a remote access session. The rule specifically looks for command-line arguments indicative of a guest connection to a ScreenConnect session.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0016
The following analytic detects attempts to exploit the ConnectWise ScreenConnect CVE-2024-1709 vulnerability, which allows attackers to bypass authentication via alternate paths or channels. It leverages Nginx access logs to identify web requests to the SetupWizard.aspx page, indicating potential exploitation. This activity is significant as it can lead to unauthorized administrative access and remote code execution. If confirmed malicious, attackers could create administrative users and gain full control over the affected ScreenConnect instance, posing severe security risks. Immediate remediation by updating to version 23.9.8 or above is recommended.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0035
Detects the execution of remote access, tunneling, and credential access tools from suspicious directories. This rule specifically targets tools commonly abused by threat actors like Scattered Spider, such as AnyDesk, TeamViewer, ngrok, Teleport, Tailscale, and Mimikatz, when executed from user-writable or temporary folders. It excludes legitimate installations in standard Program Files directories to reduce false positives.
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Mitchell V@mvani
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Detections.ai Community
1 year ago
230366
Generic rule content from file: Masquerade - Suspicious ScreenConnect Install
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Marcus Mingo@meeengoh
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Tr&de
1 year ago
84112
Generic rule content from file: Initial Access - Probable Rogue ScreenConnect Session
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Marcus Mingo@meeengoh
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Tr&de
1 year ago
9183
KQL Query from file: RMM Hunting with Sentinel TI
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Steven Lim@KQLWizard
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SlimKQL
1 year ago
5077
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
1014
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0012
Remote Monitoring and Management (RMM) programs are IT to manage remote endpoints. Attackers have begun to abuse these programs to persist or provide C2 channels.
https://github.com/jischell-msft/RemoteManagementMonitoringTools
Azure Sentinel@AzureSentinel
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AzureSentinel
1 year ago
0010
Detects potentially suspicious child processes launched via the ScreenConnect client service. This rule specifically looks for common Windows utilities being executed from a temporary ScreenConnect directory, which can indicate post-exploitation activity by an adversary using the remote access tool.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0024
This rule detects the creation or modification of files containing the string '\Bin\ScreenConnect.' in their target filename. This pattern is indicative of temporary installation artifacts for ScreenConnect, a legitimate remote access tool that can be abused by adversaries for command and control or remote access. The rule aims to identify the presence of these artifacts, which could signal the installation or use of ScreenConnect on a system.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0019
This rule detects the execution of ScreenConnect, a legitimate remote access tool. Adversaries often abuse such tools to establish persistent command and control (C2) channels, move laterally within a network, and maintain access to compromised systems. The detection is based on specific product and company metadata associated with the ScreenConnect executable.
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
1 year ago
0016
This analytic detects attempts to exploit the ConnectWise ScreenConnect CVE-2024-1708 vulnerability using Windows SACL EventCode 4663. It identifies path traversal attacks by monitoring file system events related to the ScreenConnect service. This activity is significant as it allows unauthorized access to sensitive files and directories, potentially leading to data exfiltration or arbitrary code execution. If confirmed malicious, attackers could gain unauthorized access to critical data or execute harmful code, compromising the integrity and security of the affected system. Immediate remediation by updating to version 23.9.8 or above is recommended.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0039
This analytic detects attempts to exploit the ConnectWise ScreenConnect CVE-2024-1708 vulnerability, which allows path traversal attacks by manipulating file_path and file_name parameters in the URL. It leverages the Endpoint datamodel Filesystem node to identify suspicious file system events, specifically targeting paths and filenames associated with ScreenConnect. This activity is significant as it can lead to unauthorized access to sensitive files and directories, potentially resulting in data exfiltration or arbitrary code execution. If confirmed malicious, attackers could gain unauthorized access and control over the host system, posing a severe security risk.
Splunk Security@SplunkSecurity
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Splunk Security Content
1 year ago
0036
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