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FBI cleans web shells from hacked Exchange servers in rare active defence move

Reseller News Join Reseller News Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.Sign up now FBI cleans web shells from hacked Exchange servers in rare active defence move The FBI has been deleting backdoors placed by cyberespionage group Hafnium on Microsoft Exchange servers. The court order allowing them to do so signals a more active defence approach.

FBI removes web shells from compromised Exchange servers

Share Authorities step in to thwart attacks leveraging the recently-disclosed Microsoft Exchange Server vulnerabilities The United States’ Federal Bureau of Investigation (FBI) has carried out a court-approved operation to “copy and remove” malicious web shells from hundreds of systems across the US that were compromised through the mass exploitation of zero-day flaws in Microsoft Exchange Server earlier this year. The Department of Justice (DoJ) said that many IT admins have since cleansed their systems of the malicious web shells, which were used for backdoor access to the servers. However, other systems “persisted unmitigated”, which is where the operation came in.

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