Exploitation of Pulse Connect Secure Vulnerabilities

Summary The Cybersecurity and Infrastructure Security Agency CISA is aware of compromises affecting a number of U.S. government agencies, critical infrastructure entities, and other private sector organizations by a cyber threat actor—or actors—beginning in June 2020 or earlier related to...

AppleJeus: Analysis of North Korea’s Cryptocurrency Malware

Summary This Advisory uses the MITRE Adversarial Tactics, Techniques, and Common Knowledge ATT &CK® framework. See the ATT&CK for Enterprise for all referenced threat actor tactics and techniques. This joint advisory is the result of analytic efforts among the Federal Bureau of Investigation FBI,...

Webshells Observed in Post-Compromised Exchange Servers  

CISA has added two new Malware Analysis Reports MARs to Alert AA21-062A: Mitigate Microsoft Exchange Server Vulnerabilities. Each new MAR AR21-084A and AR21-084B identifies a webshell observed in post-compromised Microsoft Exchange Servers. After successful exploiting a Microsoft Exchange Server...

North Korean Malicious Cyber Activity: AppleJeus

CISA, the Federal Bureau of Investigation, and the Department of the Treasury have released a Joint Cybersecurity Advisory and seven Malware Analysis Reports MARs on the North Korean government’s dissemination of malware that facilitates the theft of cryptocurrency—referred to by the U.S...

North Korean Malicious Cyber Activity: FASTCash

The Cybersecurity Security and Infrastructure Security Agency CISA, the Department of the Treasury, the Federal Bureau of Investigation, and U.S. Cyber Command have released a joint Technical Alert and three Malware Analysis Reports MARs on the North Korean government’s ATM cash-out scheme—referr...

North Korean Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Department of Defense DoD have identified three malware variants—COPPERHEDGE, TAINTEDSCRIBE, and PEBBLEDASH—used by the North Korean government. In addition, U.S. Cyber Command has released...

North Korean Malicious Cyber Activity

The Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Department of Defense DoD have identified a Trojan malware variant—referred to as HOPLIGHT—used by the North Korean government. The U.S. Government refers to malicious cyber activity by the...