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  1. Aug 25, 2022 · The most prolific malware users are cyber criminals, who use malware to deliver ransomware or facilitate theft of personal and financial information. CISA and ACSC encourage organizations to apply the recommendations in the Mitigations sections of this joint CSA.

  2. Malware Statistics & Trends Report | AV-TEST. Every day, the AV-TEST Institute registers over 450,000 new malicious programs (malware) and potentially unwanted applications (PUA). These are examined and classified according to their characteristics and saved.

    • SessionManager2. SessionManager2 is a malicious Internet Information Services (IIS) module or backdoor that enables CTAs to maintain persistent, update-resistant, and relatively stealthy access to a victim’s infrastructure.
    • CoinMiner. CoinMiner is a cryptocurrency miner family that typically uses Windows Management Instrumentation (WMI) to spread across a network. Additionally, it often uses the WMI Standard Event Consumer scripting to execute scripts for persistence.
    • Agent Tesla. Agent Tesla is a RAT that targets Windows operating systems. It is available for purchase on criminal forums as Malware-as-a-Service (MaaS) offerings.
    • NanoCore. NanoCore is a RAT spread via Malspam with an attachment, such as a malicious Excel XLS spreadsheet. NanoCore accepts commands to download and execute files, visit websites, and add registry keys for persistence.
    • Shlayer. Shlayer is a downloader and dropper for MacOS malware. It is primarily distributed through malicious websites, hijacked domains, and malvertizing posing as a fake Adobe Flash updater.
    • Agent Tesla. Agent Tesla is a RAT that exfiltrates credentials, log keystrokes, and capture screenshots from an infected computer.
    • Snugy. Snugy is a PowerShell-based backdoor allowing the attacker to obtain the system’s hostname and to run commands. This backdoor communicates through a DNS tunneling channel on the compromised server.
    • ZeuS. ZeuS is a modular banking trojan which uses keystroke logging to compromise victim credentials when the user visits a banking website. Since the release of the ZeuS source code in 2011, many other malware variants have adopted parts of it’s codebase, which means that events classified as ZeuS may actually be other malware using parts of the ZeuS code.
  3. Bulk email phishing is the most common type of phishing attack. A scammer creates an email message that appears to come from a large, well-known legitimate business or organization. And sends the message to millions of recipients. The victim clicks on a malicious link or file, and the malware is downloaded to their computer. What types are there?

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  5. Aug 27, 2021 · A contraction of the words malicious software, malware is software that cyberattackers develop to gain access or cause damage to a computer or network, usually without their victim’s knowledge. To define malware point blank, it’s any piece of software created with the intent to cause harm.