![]() “You think you’ve been in a dark environment?” a former special operations soldier-turned-trainer said. It is the most primitive close combat a fighter may ever face. ![]() Going underground, especially in dark, tight spaces, can trigger feelings of helplessness in even the most experienced troops, from the individual to the operational level. All of your fire support - air, armor, artillery - is useless. The air you breathe could kill you in moments. monitor anomalies in use of files that do not normally initiate connections for respective protocol(s)).FORT BRAGG, North Carolina - It is darkness like you’ve never seen. Consider correlation with process monitoring and command line to detect anomalous processes execution and command line arguments associated to traffic patterns (e.g. Monitor for DNS traffic to/from known-bad or suspicious domains and analyze traffic flows that do not follow the expected protocol standards and traffic flows (e.g extraneous packets that do not belong to established flows, or gratuitous or anomalous traffic patterns). monitor anomalies in use of files that do not normally initiate connections for respective protocol(s)). Monitor and analyze traffic patterns and packet inspection associated to protocol(s), leveraging SSL/TLS inspection for DNS over TLS (DoT) and DNS over HTTPS (DoH), that do not follow the expected protocol standards and traffic flows (e.g extraneous packets that do not belong to established flows, gratuitous or anomalous traffic patterns, anomalous syntax, or structure). WellMess has the ability to use DNS tunneling for C2 communications. The actual information transmitted by Uroburos is contained in the part of the character string prior to the first ‘.’ character. Uroburos has encoded outbound C2 communications in DNS requests consisting of character strings made to resemble standard domain names. Tropic Trooper's backdoor has communicated to the C2 over the DNS protocol. SysUpdate has used DNS TXT requests as for its C2 communication. SUNBURST used DNS for C2 traffic designed to mimic normal SolarWinds API communications. SombRAT can communicate over DNS with the C2 server. Sliver can support C2 communications over DNS. ShadowPad has used DNS tunneling for C2 communications. RDAT has used DNS to communicate with the C2. QUADAGENT uses DNS for C2 communications. POWRUNER can use DNS for C2 communications. PlugX can be configured to use DNS for command and control. OilRig has used DNS for C2 including the publicly available tunneling service. NightClub can use a DNS tunneling plugin to exfiltrate data by adding it to the subdomain portion of a DNS request. NanHaiShu uses DNS for the C2 communications. Mori can use DNS tunneling to communicate with C2. Milan has the ability to use DNS for C2 communications. LazyScripter has leveraged dynamic DNS providers for C2 communications. Variants of Kevin can communicate over DNS through queries to the server for constructed domain names with embedded information. Ke3chang malware RoyalDNS has used DNS for C2. InvisiMole has used a custom implementation of DNS tunneling to embed C2 communications in DNS requests and replies. HTTPBrowser has used DNS for command and control. ![]() Heyoka Backdoor can use DNS tunneling for C2 communications. Green Lambert can use DNS for C2 communications. Goopy has the ability to communicate with its C2 over DNS. Gelsemium has the ability to use DNS in communication with C2. įIN7 has performed C2 using DNS via A, OPT, and TXT records. Įbury has used DNS requests over UDP port 53 for C2. ĭnsSystem can direct queries to custom DNS servers and return C2 commands using TXT records. ĭenis has used DNS tunneling for C2 communications. ĭanBot can use use IPv4 A records and IPv6 AAAA DNS records in C2 communications. All protocols use their standard assigned ports. ![]() Ĭobalt Strike can use a custom command and control protocol that can be encapsulated in DNS. Ĭobalt Group has used DNS tunneling for C2. ![]() Ĭhimera has used Cobalt Strike to encapsulate C2 in DNS traffic. īrute Ratel C4 can use DNS over HTTPS for C2. īONDUPDATER can use DNS and TXT records within its DNS tunneling protocol for command and control. ĪPT39 has used remote access tools that leverage DNS in communications with C2. Variants of Anchor can use DNS tunneling to communicate with C2. ![]()
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