Statistics Report on Malware Targeting Linux SSH Servers in Q4 2023

Statistics Report on Malware Targeting Linux SSH Servers in Q4 2023

Overview   AhnLab SEcurity intelligence Center (ASEC) conducts response and classification of brute force or dictionary attacks targeting poorly managed Linux SSH servers using honeypots. This report will cover the status of attack sources identified in the fourth quarter of 2023 based on logs, as well as statistics on attacks

Analysis of the Rekoobe Backdoor Being Used In Attacks Against Linux Systems in Korea

Analysis of the Rekoobe Backdoor Being Used In Attacks Against Linux Systems in Korea

Rekoobe is a backdoor known to be used by APT31, a threat group based in China. AhnLab Security Emergency Response Center (ASEC) has been receiving reports of the Rekoobe malware from tenants in Korea for several years, and will hereby share its brief analysis. Additionally, the Rekoobe variants will be

Shc Linux Malware Installing CoinMiner

Shc Linux Malware Installing CoinMiner

The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader,