Malware with the Filename kakaoTest.exe, Possibly Developed by Kimsuky
The ASEC analysis team has been keeping eye on the trend of malware that attempts APT attacks using Word documents, and sharing them in the blog. The team has found additional malicious files that use the same code as the malware created from document files such as ‘Constitution Day International
Scam Mail Prompting Bitcoin Deposit Being Distributed
The ASEC analysis team has confirmed that a scam mail with the purpose of stealing Bitcoins is being distributed in Korea. The mail contains information about depositing Bitcoins. When users click the malicious URL in the mail, they are redirected to a scam website. As seen below, the scam
Continuously Changing Malicious Word Macro Being Distributed – Trend of TA551 (2)
The ASEC analysis team is back to continuously introduce DOC macro documents used by the TA551 group in attacks. The operation flow of macro documents hasn’t changed since its introduction in July. However, we have confirmed that in the most recent case, BazarLoader was distributed at the last step after
Attack Cases Using Metasploit Meterpreter
Metasploit is a framework used in penetration testing. It is a tool that can be used to inspect security vulnerabilities for networks and systems of companies and organizations, providing various features for each penetration test stage. Like Cobalt Strike, it provides features necessary for each stage, from creating various
Dridex Distributed Through Excel 4.0 Macro
The ASEC analysis team has recently discovered that the method of distributing Dridex via Excel files is changing more rapidly and frequently. The team has been introducing the distribution method of Dridex through the ASEC blog since last year, and the latest related post was uploaded last month to introduce
Malicious Word File Disguised as ‘Purchase and Sales Agreement for Export-bound Gold Bars’
The ASEC analysis team discovered a malicious word document disguised as ‘Purchase and Sales Agreement for Export-bound Gold Bars’ and would like to inform the readers about it through this post. Judging by the title and body text of the original document on which the distributed document is based, it
Changed Form of CryptBot Infostealer Disguised as Software Crack Download
CryptBot Infostealer disguised as commercial software downloads are constantly making changes and are actively being distributed. In the previous post of ASEC blog, the ASEC analysis team has explained the change process of BAT script in malware. This post will discuss the change in its form. CryptBot Infostealer has changed
Malicious PowerPoint Files Constantly Being Distributed
On April 2021, the ASEC analysis team introduced the malware delivered via PowerPoint files attached to email in the ASEC blog. The team has found continuous malicious activities that use PPAM files in the form of PowerPoint and thus is sharing them. When a macro included in the PowerPoint is
NanoCore RAT Disguised as Notification of Foreign Currency Remittance Being Spread!
The ASEC analysis team recently discovered that the NanoCore remote access Trojan (RAT) disguised as notification of foreign currency remittance was distributed. Because the malware is usually spread through phishing mails, users need to take extra caution. The mail impersonates a capital company and is distributed with the title “[**
JavaScript-based BlueCrab Ransomware Has Stopped?
The distribution of BlueCrab (Sodinokibi and REvil) ransomware exploiting JavaScript has stopped since July 13th, 2021. There have been many cases of the distribution being stopped and then resumed after going through changes, but this is the first time to have it stopped for such a long period. BlueCrab ransomware
