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PLAINTEE is a malware sample that has been used by Rancor in targeted attacks in Singapore and Cambodia. [1]

ID: S0254
Platforms: Windows
Version: 1.0

Techniques Used

Domain ID Name Use
Enterprise T1088 Bypass User Account Control An older variant of PLAINTEE performs UAC bypass. [1]
Enterprise T1059 Command-Line Interface PLAINTEE uses cmd.exe to execute commands on the victim’s machine. [1]
Enterprise T1094 Custom Command and Control Protocol PLAINTEE uses a custom UDP protocol to communicate. [1]
Enterprise T1024 Custom Cryptographic Protocol PLAINTEE encodes C2 beacons using XOR. [1]
Enterprise T1112 Modify Registry PLAINTEE uses reg add to add a Registry Run key for persistence. [1]
Enterprise T1057 Process Discovery PLAINTEE performs the tasklist command to list running processes. [1]
Enterprise T1060 Registry Run Keys / Startup Folder PLAINTEE gains persistence by adding the Registry key HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce. [1]
Enterprise T1105 Remote File Copy PLAINTEE has downloaded and executed additional plugins. [1]
Enterprise T1082 System Information Discovery PLAINTEE collects general system enumeration data about the infected machine and checks the OS version. [1]
Enterprise T1016 System Network Configuration Discovery PLAINTEE uses the ipconfig /all command to gather the victim’s IP address. [1]

Groups That Use This Software

ID Name References
G0075 Rancor [1]