ASEC Weekly Malware Statistics (March 20th, 2023 – March 26th, 2023)
AhnLab Security response Center (ASEC) uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from March 20th, 2023 (Monday) to March 26th, 2023 (Sunday). For the main category, backdoor ranked top with 41.7%, followed by downloader with 31.9%,
Warning for Microsoft Office Outlook Privilege Escalation Vulnerability (CVE-2023-23397)
Overview Microsoft has discovered a vulnerability in Outlook for Windows that is being exploited to steal NTLM credentials. Microsoft has assigned the code CVE-2023-23397 to this vulnerability. The company gave it an unusually high CVSS score of 9.8, with CVSS being the evaluation score for the severity level. Vulnerability Details Outlook
ASEC Weekly Malware Statistics (March 13th, 2023 – March 19th, 2023)
AhnLab Security Emergency response Center (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 March 13th, 2023 (Monday) to March 19th, 2023 (Sunday). For the main category, Infostealer ranked first with 43.8%, followed by
2022 Threat Trend Report on Kimsuky
In comparison to 2021, 2022 was a year filled with invisible activities, new attack types, Fully Qualified Domain Names (FQDN), and attack preparations. AhnLab identified a significantly higher number of these activities in comparison to 2021. One of these cases involved an incorrect configuration of C2 servers, causing the files
Unique characteristics of Kimsuky group’s spear phishing emails
A unique difference with the past cases was discovered during the analysis of the Kimsuky group’s spear phishing URLs. Until now, the group used Fully Qualified Domain Names (FQDN) disguised as famous Korean web portals. An analysis of the URLs collected during the past two months revealed multiple new FQDNs
Threat Trend Report on Region-Specific Ransomware
Background Currently, ransomware creators include individuals, cyber criminal gangs and state-supported groups. Out of these individuals and groups, cyber criminal gangs are the most proactive in ransomware development, while individuals and state-supported groups are less so. Privately developed ransomware is most often for research purposes with the intention of destroying
ASEC Weekly Malware Statistics (March 6th, 2023 – March 12th, 2023)
AhnLab Security response Center (ASEC) uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from March 6th, 2023 (Monday) to March 12th, 2023 (Sunday). For the main category, Infostealer ranked top with 52.6%, followed by backdoor with 27.6%,
ASEC Weekly Malware Statistics (February 27th, 2023 – March 5th, 2023)
ASEC (AhnLab Security Emergency response Center) uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from February 27th, 2023 (Monday) to March 5th, 2023 (Sunday). For the main category, backdoor ranked top with 51.4%, followed by Infostealer with
ASEC Weekly Malware Statistics (February 20th, 2023 – February 26th, 2023)
ASEC (AhnLab Security Emergency response Center) uses the ASEC automatic analysis system RAPIT to categorize and respond to known malware. This post will list weekly statistics collected from February 20th, 2023 (Monday) to February 26th, 2023 (Sunday). For the main category, backdoor ranked top with 51.0%, followed by downloader with
ASEC Weekly Malware Statistics (February 13th, 2023 – February 19th, 2023)
AhnLab Security response Center (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 February 13th, 2023 (Monday) to February 19th, 2023 (Sunday). For the main category, backdoor ranked top with 50.8%, followed by downloader
