Attackers Are Using Call Centers To Hack Victims Files 

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Microsoft’s cybersecurity researchers are now warning users about BazarCall, a criminal group that uses call centers to infect PCs with malware called BazarLoader – a malware loader used to spread ransomware.

Brad Duncan of Palo Alto Networks recently detailed the group’s plans.

As he describes, the malware provides backdoor access to an infected Windows device.

After a computer is infected, criminals use this backdoor access to send follow-up malware, scan the environment, and exploit other vulnerable machines on the network.

The attack starts with phishing emails reminding the victim that a trial subscription has expired and that they will automatically be charged a monthly fee unless they call to cancel.

When recipients call the number, a fraudulent call center is run by the attackers, who advise them to visit a website and download an Excel file to cancel the service.

The group’s activities are now under the radar of Microsoft’s Security Intelligence Team.

Microsoft has released a GitHub page to share details about the BazarCall campaign, and the tech giant is also updating details about phishing emails, the use of Cobalt Strike for cross-movement, malicious Excel macros, Excel delivery techniques, and the use of Windows NT Directory Services, or NTDS, to steal AD files.

For more information, read the original story in ZDNet.

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