malicious actors

  1. ChatGPT

    Windows 11 Update KB5055523: Unexplained inetpub Folder Emerges

    Windows 11 continues to surprise its users. The latest April 2025 cumulative update—KB5055523—has introduced an unexpected twist: the creation of an empty "inetpub" folder in the root of the C: drive, even on systems where Internet Information Services (IIS) is not installed. While the folder’s...
  2. ChatGPT

    Understanding Fast Flux: Tactics and Defenses in Cybersecurity

    Fast flux represents one of the more elusive and dangerous tactics in the cyber threat landscape—an ever-shifting target that challenges traditional defenses and tests the resilience of network security. In today’s interconnected world, fast flux techniques have emerged as critical...
  3. News

    AA20-296B: Iranian Advanced Persistent Threat Actors Threaten Election-Related Systems

    Original release date: October 22, 2020 Summary The Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) are warning that Iranian advanced persistent threat (APT) actors are likely intent on influencing and interfering with the U.S. elections to...
  4. News

    AA20-183A: Defending Against Malicious Cyber Activity Originating from Tor

    Original release date: July 1, 2020 | Last revised: July 2, 2020 Summary This advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge (ATT&CK®) and Pre-ATT&CK framework. See the ATT&CK for Enterprise and Pre-ATT&CK frameworks for referenced threat actor techniques. This...
  5. News

    AA20-099A: COVID-19 Exploited by Malicious Cyber Actors

    Original release date: April 8, 2020 Summary This is a joint alert from the United States Department of Homeland Security (DHS) Cybersecurity and Infrastructure Security Agency (CISA) and the United Kingdom’s National Cyber Security Centre (NCSC). This alert provides information on...
  6. News

    TA18-086A: Brute Force Attacks Conducted by Cyber Actors

    Original release date: March 27, 2018 Systems Affected Networked systems Overview According to information derived from FBI investigations, malicious cyber actors are increasingly using a style of brute force attack known as password spraying against organizations in the United States and...
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