Common Information
Type Value
Value
Remote Access Tools - T1219
Category Attack-Pattern
Type Mitre-Enterprise-Attack-Attack-Pattern
Misp Type Cluster
Description An adversary may use legitimate desktop support and remote access software, such as Team Viewer, Go2Assist, LogMein, AmmyyAdmin, etc, to establish an interactive command and control channel to target systems within networks. These services are commonly used as legitimate technical support software, and may be whitelisted within a target environment. Remote access tools like VNC, Ammy, and Teamviewer are used frequently when compared with other legitimate software commonly used by adversaries. (Citation: Symantec Living off the Land) Remote access tools may be established and used post-compromise as alternate communications channel for Redundant Access or as a way to establish an interactive remote desktop session with the target system. They may also be used as a component of malware to establish a reverse connection or back-connect to a service or adversary controlled system. Admin tools such as TeamViewer have been used by several groups targeting institutions in countries of interest to the Russian state and criminal campaigns. (Citation: CrowdStrike 2015 Global Threat Report) (Citation: CrySyS Blog TeamSpy) Detection: Monitor for applications and processes related to remote admin tools. Correlate activity with other suspicious behavior that may reduce false positives if these tools are used by legitimate users and administrators. Analyze network data for uncommon data flows (e.g., a client sending significantly more data than it receives from a server). Processes utilizing the network that do not normally have network communication or have never been seen before are suspicious. Analyze packet contents to detect application layer protocols that do not follow the expected protocol for the port that is being used. Domain Fronting may be used in conjunction to avoid defenses. Adversaries will likely need to deploy and/or install these remote tools to compromised systems. It may be possible to detect or prevent the installation of these tools with host-based solutions. Platforms: Linux, Windows, macOS Data Sources: Network intrusion detection system, Network protocol analysis, Process use of network, Process Monitoring Permissions Required: User Requires Network: Yes Contributors: Matt Kelly, @breakersall
Details Published Attributes CTI Title
Details Website 2023-04-28 2 Top five Cyber Threat Intel stories of the week: 04/24 to 04/28/2023
Details Website 2023-04-28 0 Screen hacking: What is it?
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Details Website 2023-04-22 89 Bluepurple Pulse: week ending April 23rd
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Details Website 2023-04-13 0 RTM Locker: Emerging Cybercrime Group Targeting Businesses with Ransomware
Details Website 2023-04-13 0 RTM Locker: Emerging Cybercrime Group Targeting Businesses with Ransomware - RedPacket Security
Details Website 2023-04-12 4 Botconf 2023 Wrap-Up Day #1 - /dev/random
Details Website 2023-04-11 4 Guidance for investigating attacks using CVE-2022-21894: The BlackLotus campaign - Microsoft Security Blog
Details Website 2023-04-11 1 Iranian APT group launches destructive attacks in hybrid Azure AD environments
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