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DETECTION OVERVIEW
Risk Factors
SSH is a common target for attackers because it provides remote control access to other devices. An attacker can easily change a compromised device to communicate on a non-standard port to evade detection. While non-standard port traffic can be legitimate, these activities should be examined before they enable critical and costly attacks.
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Category
The standard port for SSH traffic is port 22. To establish a secure command-and-control (C&C) channel, an attacker sets up an SSH server on a non-standard port. This port helps the attacker evade egress firewall rules, which prevent unauthorized SSH traffic from leaving the network. An attacker can then exfiltrate data from inside the network on this port.
Network analysis and visibility solutions remain underrepresented in enterprises. Find out why in this preview of a new Wave report.
ExtraHop® Named a Leader in First-Ever Gartner® Magic Quadrant™ for Network Detection and Response
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This analysis exposes the critical link between an organization's lack of internal visibility and the escalating cost of compromise, demanding an urgent re-evaluation of how core business assets are protected.
Learn why you need to be wary of the claims certain network detection and response providers make about their coverage against the MITRE ATT&CK framework.
Learn how NDR from RevealX helps security teams detect and investigate more adversary TTPs in the MITRE ATT&CK framework than rule-based tools.
