Amadey Bot Being Distributed Through SmokeLoader
Amadey Bot, a malware that was first discovered in 2018, is capable of stealing information and installing additional malware by receiving commands from the attacker. Like other malware strains, it has been sold in illegal forums and used by various attackers. The ASEC analysis team previously revealed cases where Amadey
New Info-stealer Disguised as Crack Being Distributed
The ASEC analysis team has previously uploaded posts about various malware types that are being distributed by disguising themselves as software cracks and installers. CryptBot, RedLine, and Vidar are major example cases. Recently, a single malware type of RedLine has disappeared (it is still being distributed as a dropper type)
XLL Malware Distributed Through Email
Malware strains have been created and distributed in various forms and types. As such, the ASEC analysis team is actively monitoring and analyzing such changes to allow AhnLab products to detect them. This post will introduce XLL malware that was discovered being distributed last year. XLL files are Microsoft Excel
Method that Tricks Users to Perceive Attachment of PDF File as Safe File
The ASEC analysis team has discovered the distribution of info-stealer malware using Attachment feature of PDF files. This attack method was discovered previously, but as the malware of this type has resurfaced and is being actively distributed, the team would like to share the information. Note that the attacker used
Infostealer Being Distributed via YouTube
The ASEC analysis team has recently discovered an infostealer that is being distributed via YouTube. The attacker disguised the malware as a game hack for Valorant, and uploaded the following video with the download link for the malware, then guided the user to turn off the anti-malware program. The team
New Infostealer ‘ColdStealer’ Being Distributed
The ASEC analysis team has discovered the distribution of ColdStealer that appears to be a new type of infostealer. The malware disguises itself as a software download for cracks and tools, a distribution method that was mentioned multiple times in previous ASEC blog posts. There are two cases for this
Vidar Exploiting Social Media Platform (Mastodon)
The ASEC analysis team has recently discovered that Vidar is exploiting a social media platform named Mastodon to create C&C server addresses. Mastodon website 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
Infostealer Disguised as Well-Known Korean Web Portal File
The ASEC analysis team has discovered an infostelaer type malware disguised as a file related to a Korean web portal. The team found the NAVER.zip file in the malicious URL used in recent phishing emails with the compressed file including an executable named ‘NaverProtector.exe’. The email with the malicious URL
Malware Being Sneakily Installed in My PC-BeamWinHTTP Malware
The weekly malware statistics which ASEC analysis team uploads every week show that the number of occurrences for a downloader type malware named BeamWinHTTP has been on the rise for the last few weeks. According to the last ASEC weekly malware statistics, BeamWinHTTP malware is one of the top 3
Distribution of Malware via Resume/Copyright-Related Emails (Ransomware, Infostealer)
ASEC analysis team has confirmed the malware under the disguise of a resume is still being distributed. This time, it disguised as resume and copyright-related files. The file that is being recently distributed also takes the form of NSIS (Nullsoft Scriptable Install System) and is being distributed under various filenames

