LoFP LoFP / t1095

t1095

TitleTags
false-positives (fp) can appear if another remote terminal service is being used to connect to it's listener but typically ssh is used in these scenarios.
if you work in a public sector then it may be good to exclude things like endswith \".edu\", \".gov\" and or \".mil\"
internal or legitimate external domains using dnssec. verify if these are legitimate dnssec domains and then exclude them.
legitimate ncat use
netcat is a dual-use tool that can be used for benign or malicious activity. netcat is included in some linux distributions so its presence is not necessarily suspicious. some normal use of this program, while uncommon, may originate from scripts, automation tools, and frameworks.
newly deployed legitimate site-to-site or client vpn gateways, or established gateways that were inactive for more than 5 days, will generate an alert when first observed. where these peers are expected, their external destination ip addresses can be excluded.
security training, ctf-style images, or vendor diagnostics may include bash redirection or /dev/tcp examples. baseline approved images then expand exclusions as needed.
unknown