The Nigerian Communications Commission (NCC), as part of its commitment to continuously keep stakeholders in the country’s telecoms sector informed, educated and protected, has called the attention of the public to another hacking group carrying out cyberespionage in the African telecoms space.
A statement signed by the Director, Public Affairs, Dr. Ikechukwu Adinde, states that an Iranian hacking group known as Lyceum (also known as Hexane, Siamesekitten, or Spirlin) has been reported to be targeting telecoms, Internet Service Providers (ISPs) and Ministries of Foreign Affairs (MFA) in Africa with upgraded malware in a recent politically motivated attacks oriented in cyberespionage.
The statement said Information about this cyber attack is contained in the latest advisory issued by the Nigerian Computer Emergency Response Team (ngCERT) which classified as high, the probability and damage level of the new malware.
According to the advisory, the hacking group is known to be focused on infiltrating the networks of telecoms companies and Internet Service Providers which has so far happened in Israel, Morocco, Tunisia, and Saudi Arabia, between July and October, 2021.
Adinde noted that the advanced persistent threat (APT) group has been linked to campaigns that hit Middle Eastern oil and gas companies in the past and now the group appears to have expanded its focus to the technology sector. In addition, the APT is responsible for a campaign against an unnamed African government’s Ministry of Foreign Affairs.
Lyceum’s initial onslaught vectors include credential stuffing and brute force attacks which leaves a victim’s system is compromised, thereby creating room for the attackers to conduct surveillance on specific targets. In that mode, Lyceum will attempt to deploy two different kinds of malware: Shark and Milan (known together as James).
Adeinde further stated that both are able to communicate with the group’s command-and-control (C2) servers. The APT maintains a C2 server network that connects to the group’s backdoors, consisting of over 20 domains, including six that were previously not associated with the threat actors.
According to reports, individual accounts at companies of interest are usually targeted, and then once these accounts are breached, they are used as a springboard to launch spear-phishing attacks against high-profile executives in an organization. The report suggests that not only do these attackers seek out data on subscribers and connected third-party companies, but once compromised, threat actors or their sponsors can also use these industries to surveil individuals of interest.
However, to guard against this kind of threats, the NCC acting on the report of ngCERT said that multiple layers of security in addition to constant network monitoring is required by telecom companies and ISPs alike to stave off potential attacks.
Specifically, telecom consumers and the general public are advised to:
a. Ensure the consistent use of firewalls (software, hardware and cloud firewalls).
b. Enable a Web Application Firewall to help detect and prevent attacks coming from web applications by inspecting HTTP traffic.
c. Install Up-to-date antivirus programmes to help detect and prevent a wide range of malware, trojans, and viruses, which APT hackers will use to exploit your system.
d. Implement the use of Intrusion Prevention Systems that monitors your network;
e. Create a secure sandboxing environment that allows you to open and run untrusted programs or codes without risking harm to your operating system.
f. Ensure the use of virtual private network (VPN) to prevent an easy opportunity for APT hackers to gain initial access to your company’s network and also enable spam and malware protection for your email applications, and educate your employees on how to identify potentially malicious emails.
For further technical assistance, contact ngCERT on firstname.lastname@example.org.
The NCC as the operator of the telecom sector’s cyber threat response centre (CSIRT), further reiterates its commitment to active surveillance and monitoring of cyber activities in the sector and will always keep stakeholders in Nigeria’s telecommunications sector updated on potential threats within the cyber space to ensure that the networks that deliver essential services are safe and that telecom consumers are protected from being victims of cyber attacks.