Vidar Stealer Exploiting Various Platforms
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. Vidar Exploiting
Malware Distributed with Disguised Filenames (RIGHT-TO-LEFT OVERRIDE)
In August, the ASEC analysis team made a post on the malware being distributed with filenames that utilize RTLO (Right-To-Left Override). RTLO is a unicode that makes an override from right to left. This type of malware induces users to execute its files by mixing filenames with extensions, with its
FormBook Malware Being Distributed as .NET
AhnLab’s ani-malware software, V3, detects and responds to malware with a variety of detection features including the App Isolate Scan feature. The App Isolate Scan detects and quarantines suspicious processes. This allows quarantining malware such as Infostealer and downloader in a virtual environment for detection. Therefore, V3 can protect users
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
