Phishing Email Disguised as a Well-Known Korean Airline
The ASEC analysis team has recently discovered a phishing email that impersonates a well-known Korean airline to collect user credentials. The phishing email contains a notice on airline ticket payment, inducing the reader to connect to the disguised phishing page with specific ticket prices and details that implies that the
Phishing Website Disguised as a Famous Korean Email Login Website Being Distributed
The ASEC analysis team has identified the distribution of a malicious website in Korea that aims to steal account credentials from a famous Korean email service website. The phishing website the email is redirected to is disguised as a login page for a Korean email website, and over 50 cases
Amadey Bot Disguised as a Famous Korean Messenger Program Being Distributed
On October 17th, 2022, the Korean Internet & Security Agency (KISA) published a security notice titled “Advising Caution on Cyber Attacks Exploiting the Kakao Service Malfunction Issue’, and according to the notice, malware disguised as a KakaoTalk installation file (KakaoTalkUpdate.zip etc.) is being distributed via email. KISA security notice: https://www.boho.or.kr/data/secNoticeView.do?bulletin_writing_sequence=66958
GuLoader Malware Disguised as a Word File Being Distributed in Korea
The ASEC analysis team has discovered that the GuLoader malware is being distributed to Korean corporate users. GuLoader is a downloader that has been steadily distributed since the past, downloading various malware. The phishing mail being distributed is as follows, and has an HTML file attached. When the user opens
Phishing Websites Disguised as Korean Groupware Login Website Being Distributed
The ASEC analysis team has been building a honeypot to collect various malware strains that are being distributed both in Korea and overseas. The honeypot also collects phishing emails and recently caught one targeting Korean users, which was being distributed continuously to Korean email accounts only since August. The phishing
GuLoader Disguised as Estimate Requests Being Distributed via Phishing Email
GuLoader has ranked again in Top 5 malware keywords of ASEC Weekly Malware Statistics for the first time in two years. It is a downloader malware that can download additional malware, and got its name as Google Drive is frequently used as its download URL. ASEC Weekly Malware Statistics (June
Bumblebee Being Distributed in Korea Through Email Hijacking
The ASEC analysis team has recently discovered the active distribution of Bumblebee, a downloader type malware. It is distributed using phishing emails in ISO file, and this file contains a shortcut and malicious DLL file. There were also cases of malware being distributed to Korean users through email hijacking. The
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
Increased Phishing Attacks Disguised as Microsoft
The ASEC analysis team has recently discovered phishing emails disguised as Microsoft login pages. As shown in the figure below, one of the collected samples is disguised as the company’s voice message to prompt users to click the attached playback file. Clicking the file redirects users to a phishing webpage

