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Cleaning malware from backup data

  • US 9,940,460 B1
  • Filed: 12/18/2015
  • Issued: 04/10/2018
  • Est. Priority Date: 12/18/2015
  • Status: Active Grant
First Claim
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1. A computer-implemented method for cleaning backup images, the method comprising:

  • receiving a request from a backup server connected via a network;

    in response to the request, beginning, by a backup cleaning logic executed by a processor, an input/output (I/O) recording session for I/O operations performed to a data storage system;

    sending, by the backup cleaning logic, a request to anti-malware logic to scan the data storage system to locate a data object containing malicious instructions or data associated with a malware infection;

    recording the I/O operations performed by the anti-malware logic to resolve the malware infection, including logging write IO requests to write data to a storage device of the data storage system, wherein the I/O operations replace at least a first sequence in the data object with a second sequence;

    ending the I/O recording session after recording the I/O operations performed by the anti-malware logic; and

    applying the I/O operations of the I/O recording session to resolve a malware infection in a backup image, wherein applying the IO operations comprisestransmitting the I/O operations of the I/O recording session over the network to a remote storage server and applying the I/O operations of the I/O recording session to the backup image via the remote storage server,storing the I/O operations of the I/O recording session to a journal of a continuous data protection system wherein the journal of the continuous data protection system duplicates write operations to the remote storage server to a remote copy of the data storage system,transmitting the journal over the network to the remote storage server, andapplying the recorder I/O operations to the backup image to resolve the malware infection in the backup image.

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