The U.S. Department of Homeland Security (DHS) and the FCI published a new joint report on ELECTRICFISH, a malware used by North Korea.
US DHS and the Federal Bureau of Investigation (FBI) conducted a joint analysis of a traffic tunneling tool dubbed ELECTRICFISH used by North Korea-linked APT group tracked as Hidden Cobra (aka Lazarus).
It is interesting to note that the sample analyzed in the report is not on Virus Total, as highlighted by the security expert Dariel Huss.
According to Huss, three different samples of the same malware were uploaded to VirusTotal in August, September and October 2018.
The malware implements a custom protocol that allows threat actors to funnel traffic between two IP addresses. The Malware Analysis Report (MAR) published by the US agencies is related to an analysis of one malicious 32-bit Windows executable file.
This report includes indicators of compromise (IoC), it also suggests response actions and recommends mitigation techniques.
The software is a command-line utility that accepts as arguments the destination IP address and port, a source IP address and port, a proxy IP address and port, and a user name and password to authenticate with a proxy server.
It will attempt to establish TCP sessions between the source IP address and the destination IP address using a custom protocol. The configured proxy server is not required for this utility.
“The malware continuously attempts to reach out to the source and the designation system, which allows either side to initiate a funneling session. The malware can be configured with a proxy server/port and proxy username and password.” reads the malware report. “This feature allows connectivity to a system sitting inside of a proxy server, which allows the actor to bypass the compromised system’s required authentication to reach outside of the network,”
Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer.
Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US.
Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines.
Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.