+Data Encrypted for Impact Mitigation

Data Encrypted for Impact Mitigation

Consider implementing IT disaster recovery plans that contain procedures for regularly taking and testing data backups that can be used to restore organizational data.[1]

In some cases, the means to decrypt files affected by a ransomware campaign is released to the public. Research trusted sources for public releases of decryptor tools/keys to reverse the effects of ransomware.

Identify potentially malicious software and audit and/or block it by using whitelisting[2] tools, like AppLocker,[3],[4] or Software Restriction Policies[5] where appropriate.[6]

References

  1. Ready.gov. (n.d.). IT Disaster Recovery Plan. Retrieved March 15, 2019.
  2. Beechey, J. (2010, December). Application Whitelisting: Panacea or Propaganda?. Retrieved November 18, 2014.
  3. Tomonaga, S. (2016, January 26). Windows Commands Abused by Attackers. Retrieved February 2, 2016.
  4. NSA Information Assurance Directorate. (2014, August). Application Whitelisting Using Microsoft AppLocker. Retrieved March 31, 2016.
  5. Corio, C., & Sayana, D. P. (2008, June). Application Lockdown with Software Restriction Policies. Retrieved November 18, 2014.
  6. Microsoft. (2012, June 27). Using Software Restriction Policies and AppLocker Policies. Retrieved April 7, 2016.

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