Silent Chollima

North Korea


SILENT CHOLLIMA is a Democratic People’s Republic of Korea (DPRK) adversary that has been active since at least 2007 and likely operates in support of Bureau 121 of the DPRK’s Reconnaissance General Bureau (RGB). Early operations demonstrated both destructive and espionage components; however, SILENT CHOLLIMA’s mission appears to have changed in 2015 following a significant reorganization of the D...

Community Identifiers



  • uExgSlzMNy9ohXc
  • IGAdFPkRVl5SosyL8pHZTcg0Ya6C
  • d4HuyilYrf8QZhkC1XxDeo6
  • 0nhsNg1jkX8u


  • CfADGjEz8QVa6nr
  • 0MAzf32U

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IOCs for this adversary


During a cybersecurity incident, indicators of compromise (IoC) are clues and evidence of a data breach.