[PHASEJAM](https://attack.mitre.org/software/S9014) is a dropper written as a bash shell script that modifies Ivanti Connect Secure appliance components. [PHASEJAM](https://attack.mitre.org/software/S9014) was first reported in January 2025. [PHASEJAM](https://attack.mitre.org/software/S9014) has previously been leveraged by People's Republic of China (PRC)- affiliated actors identified as UNC5221 and SYLVANITE.(Citation: Dragos SYLVANITE MuddyWater Electrum March 2026)(Citation: Google UNC5221 Ivanti January 2025)
Platforms: Linux, Network Devices
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