rootkit

Analysis Report on Lazarus Group’s Rootkit Attack Using BYOVD

Since 2009, Lazarus Group, known to be a group of hackers in North Korea, has been attacking not only Korea but various countries of America, Asia, and Europe. According to AhnLab’s ASD (AhnLab Smart Defense) infrastructure, in early 2022, the Lazarus Group performed APT (Advanced Persistent Threat) attacks on Korea’s defense, finance, media, and pharmaceutical industries. AhnLab closely tracked these APT attacks and discovered that these attacks incapacitate security products in the attack process. An analysis of the attack process…

Checking and Remediating Stealthy Malware, PurpleFox

PurpleFox was first discovered in 2018. The attacker hid the malware with a self-developed driver back then, but since 2019, they have been using the customized open-source program ‘Hidden.’ It was also found that the attacker tested the malware multiple times to add various features starting from the middle of 2020. PurpleFox is ultimately a CoinMiner, but it can perform the role of a downloader that installs additional malware as well as spread it to other connected PCs. As for…