RecordBreaker Stealer Distributed via Hacked YouTube Accounts
RecordBreaker is a new Infostealer that appeared in 2022 and is known as the new version of Raccoon Stealer. Similar to other Infostealers, such as CryptBot, RedLine, and Vidar, it is a major malware type that usually disguises itself as a software crack or installer. AhnLab Security Emergency response Center
CoinMiner (KONO DIO DA) Distributed to Linux SSH Servers
AhnLab Security Emergency response Center (ASEC) has recently discovered XMRig CoinMiner being installed on poorly managed Linux SSH servers. The attacks have been happening with a distinct pattern since 2022: they involve the usage of malware developed with Shell Script Compiler (SHC) when installing the XMRig, as well as the
RokRAT Malware Distributed Through LNK Files (*.lnk): RedEyes (ScarCruft)
AhnLab Security Emergency response Center (ASEC) confirmed that the RedEyes threat group (also known as APT37, ScarCruft), which distributed CHM Malware Disguised as Security Email from a Korean Financial Company last month, has also recently distributed the RokRAT malware through LNK files. RokRAT is malware that is capable of collecting
ASEC Weekly Phishing Email Threat Trends (April 9th, 2023 – April 15th, 2023)
AhnLab Security Emergency response Center (ASEC) monitors phishing email threats with the ASEC automatic sample analysis system (RAPIT) and honeypot. This post will cover the cases of distribution of phishing emails during the week from April 9th, 2023 to April 15th, 2023 and provide statistical information on each type. Generally,
Tonto Team Using Anti-Malware Related Files for DLL Side-Loading
The Tonto Team is a threat group that targets mainly Asian countries, and has been distributing Bisonal malware. AhnLab Security Emergency response Center (ASEC) has been tracking the Tonto Team’s attacks on Korean education, construction, diplomatic, and political institutions. Recent cases have revealed that the group is using a file
BlackBit Ransomware Being Distributed in Korea
AhnLab Security Emergency response Center (ASEC) has recently discovered the distribution of the BlackBit ransomware disguised as svchost.exe during the team’s monitoring. According to the ASEC’s internal infrastructure, the BlackBit ransomware has been continuously distributed since September last year. The ransomware uses .NET Reactor to obfuscate its code, likely to
8220 Gang Uses Log4Shell Vulnerability to Install CoinMiner
Ahnlab Security Emergency response Center (ASEC) has recently confirmed that the 8220 Gang attack group is using the Log4Shell vulnerability to install CoinMiner in VMware Horizon servers. Among the systems targeted for the attack, there were Korean energy-related companies with unpatched and vulnerable systems, hence being preyed upon by multiple
ASEC Weekly Phishing Email Threat Trends (April 2nd, 2023 – April 8th, 2023)
AhnLab Security Emergency response Center (ASEC) monitors phishing email threats with the ASEC automatic sample analysis system (RAPIT) and honeypot. This post will cover the cases of distribution of phishing emails during the week from April 2nd, 2023 to April 8th, 2023 and provide statistical information on each type. Generally,
Additional Activities of the Tick Group That Attacks with a Modified Q-Dir and Their Ties with Operation Triple Tiang
In March 2023, Eset analyzed malware that was found in an East Asian DLP manufacturer and announced that the Tick group was responsible for it. The Tick group has been active mainly in Korea and Japan since 2014, targeting various sectors such as aerospace, military, defense industries, heavy industries, electronics,
Trigona Ransomware Attacking MS-SQL Servers
AhnLab Security Emergency response Center (ASEC) has recently discovered the Trigona ransomware being installed on poorly managed MS-SQL servers. Trigona is a relatively recent ransomware that was first discovered in October 2022, and Unit 42 has recently published a report based on the similarity between Trigona and the CryLock ransomware. [1]
