Distribution of LockBit Ransomware and Vidar Infostealer Disguised as Resumes Posted By kwonxx , November 8, 2023 The distribution method involving the impersonation of resumes is one of the main methods used by the LockBit ransomware. Information related to this has been shared through the ASEC Blog in February of this year. [1] In contrast to the past where only the LockBit ransomware was distributed, it has been confirmed that an Infostealer is also being included in recent distributions. [2] (This link is only available in Korean.) ‘Resume16.egg’ holds the LockBit ransomware disguised as a PDF file…
Attack Cases of CoinMiners Mining Ethereum Classic Coins Posted By Sanseo , January 31, 2023 The ASEC analysis team is monitoring CoinMiners that are targeting Korean and overseas users. We have covered cases of various types of CoinMiner attacks over multiple blog posts in the past. This post aims to introduce the recently discovered malware that mine Ethereum Classic coins. 0. Overview CoinMiners are installed without user awareness and use the system’s resources to mine cryptocurrency, leading to low system performance. Threat actors that distribute CoinMiners tend to mine coins that guarantee anonymity, such as…
Vidar Stealer Exploiting Various Platforms Posted By jcleebobgatenet , December 22, 2022 Vidar Malware is one of the active Infostealers, and its distribution has been significantly increasing. Its characteristics include the use of famous platforms such as Telegram and Mastodon as an intermediary C2. The link below is a post about a case where malicious behaviors were performed using Mastodon. Even afterward, Vidar saw continuous version updates while actively being distributed. In the recent samples in circulation, various other platforms such as Steam and TikTok were used aside from Telegram and Mastodon….
Vidar Exploiting Social Media Platform (Mastodon) Posted By jcleebobgatenet , January 26, 2022 The ASEC analysis team has recently discovered that Vidar is exploiting a social media platform named Mastodon to create C&C server addresses. Vidar is an info-stealer malware installed through spam emails and PUP, sometimes being disguised as a KMSAuto authenticator tool. It has been consistently distributed since the past, and there was a recent case of it being installed through other types of malware such as Stop ransomware. When Vidar is run, it first accesses the C&C server to receive…
Vidar Info-Stealer Abusing Game Platform Posted By jcleebobgatenet , May 24, 2021 The ASEC analysis team has recently found out that the Vidar info-stealer malware is abusing a game matching program named Faceit to create C&C server URL. Vidar is malware that has been steadily distributed from the past disguised as spam mail, PUP, and KMSAuto authentication tool. Before it performs info-stealing activities, it connects to C&C server to receive commands and download additional DLL files to collect user information. In the past, the malware simply connected to C&C server and received…
