ASEC Weekly Phishing Email Threat Trends (December 25th, 2022 – December 31st, 2022) Posted By jcleebobgatenet , January 10, 2023 The ASEC analysis team 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 December 25th, 2022 to December 31st, 2022 and provide statistical information on each type. Generally, phishing is cited as an attack that leaks users’ login account credentials by disguising as or impersonating an institute, company, or individual through social engineering methods. On a broader note, the act…
Web Page Disguised as a Kakao Login Page Posted By jcleebobgatenet , January 10, 2023 The ASEC analysis team recently identified a fake Kakao login page attempting to gain access to the account credentials of specific individuals. The specific route through which users first arrive on these pages is unknown, but it is assumed that users were led to log in via web on a page whose link is provided in phishing emails. When the user arrives on the web page, the ID of the Kakao account is autocompleted, as shown in Figure 1 below….
Distribution of NetSupport RAT Malware Disguised as a Pokemon Game Posted By Sanseo , January 6, 2023 NetSupport Manager is a remote control tool that can be installed and used by ordinary or corporate users for the purpose of remotely controlling systems. However, it is being abused by many threat actors because it allows external control over specific systems. Unlike backdoors and RATs (Remote Access Trojans), which are mostly based on command lines, remote control tools (Remote Administration Tools) place emphasis on user-friendliness, so they offer remote desktops, also known as GUI environments. Even though they may…
ASEC Weekly Malware Statistics (December 26th, 2022 – January 1st, 2023) Posted By jcleebobgatenet , January 6, 2023 The ASEC analysis team uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from December 26th, 2022 (Monday) to January 1st, 2023 (Sunday). For the main category, downloader ranked top with 48.8%, followed by backdoor with 24.2%, Infostealer with 18.4%, CoinMiner with 4.8%, ransomware with 3.4%, and lastly banking malware with 0.5%. Top 1 – SmokeLoader SmokeLoader is an Infostealer/downloader malware that is distributed via exploit kits. This…
Shc Linux Malware Installing CoinMiner Posted By Sanseo , January 4, 2023 The ASEC analysis team recently discovered that a Linux malware developed with Shc has been installing a CoinMiner. It is presumed that after successful authentication through a dictionary attack on inadequately managed Linux SSH servers, various malware were installed on the target system. Among those installed were the Shc downloader, XMRig CoinMiner installed through the former, and DDoS IRC Bot, developed with Perl. 1. Shc (Shell Script Compiler) Shc is an abbreviation for Shell Script Compiler and is responsible for…
