. IoT or Internet of {Things,Threats} Thomas (@nyx__o) Malware - PowerPoint PPT Presentation

Apr 15, 2023 •202 likes •1.25k views

. IoT or Internet of {Things,Threats} Thomas (@nyx__o) Malware Researcher at ESET CTF lover Open source contributor Olivier (@obilodeau) Malware Researcher at ESET Infosec lecturer at ETS University in Montreal Previously infosec

Win32/RBrute Targets $ strings rbrute.exe [...] TD-W8901G TD-W8901GB TD-W8951ND TD-W8961ND TD-8840T TD-W8961ND TD-8816 TD-8817 TD-W8151N TD-W8101G ZXDSL 831CII ZXV10 W300 [...] DSL-2520U DSL-2600U DSL router TD-W8901G TD-W8901G 3.0 TD-W8901GB TD-W8951ND TD-W8961ND
Win32/RBrute Bruteforce Logins: admin , support , root & Administrator Password list retrieved from the CnC <empty string> 111111 12345 123456 12345678 abc123 admin Administrator consumer dragon gizmodo iqrquksm letmein lifehack monkey password qwerty root soporteETB2006 support
Win32/RBrute Changing DNS http://<router_IP>&dnsserver=<malicious_DNS>&dnsserver2=8.8.8.8&Save=Save http://<router_IP>dnscfg.cgi?dnsPrimary=<malicious_DNS> http://<router_IP>Enable_DNSFollowing=1&dnsPrimary=
Win32/RBrute Next Step Simple redirection to fake Chrome installer (facebook or google domains) Install (user action required) Change primary DNS on the computer (via key registry) HKLM/SYSTEM/ControlSet001/Services/Tcpip/Parameters/Interfaces/{network interface UUID}/NameServer
Why reinfect someone by RBrute and not Sality?
Win32/RBrute In A Coffee Shop Infected user Infected router Everyone is infected
RBrute and Sality

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