Log4j flaw attacks are causing lots of problems, Microsoft warns

Microsoft has warned Windows and Azure customers to remain vigilant after observing state-sponsored and cyber-criminal attackers probing systems for the Log4j ‘Log4Shell’ flaw through December. 

Disclosed by the Apache Software Foundation on December 9, Log4Shell will likely take years to remediate because of how widely the error-logging software component is used in applications and services. 

Microsoft warns that customers might not be aware of how widespread the Log4j issue is in their environment. Over the past month, Microsoft has released numerous updates, including to its Defender security software, to help customers identify the issue as attackers stepped up scanning activity. 

LOG4J FLAW COVERAGE – WHAT YOU NEED TO KNOW NOW 

“Exploitation attempts and testing have remained high during the last weeks of December. We have observed many existing attackers adding exploits of these vulnerabilities in their existing malware kits and tactics, from coin miners to hands-on-keyboard attacks,” the Microsoft 365 Defender Threat Intelligence Team and the Microsoft Threat Intelligence Center (MSTIC) said in a January 3 update

Microsoft said customers should “assume broad availability of exploit code and scanning capabilities to be a real and present danger to their environments.” Hence, it’s encouraging customers to utilize scripts and scanning tools to assess their

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