NanHaiShu is a remote access tool and JScript backdoor used by Leviathan. NanHaiShu has been used to target government and private-sector organizations that have relations to the South China Sea dispute. [1] [2]

ID: S0228
Platforms: Windows

Version: 1.0

Techniques Used

EnterpriseT1089Disabling Security ToolsNanHaiShu can change Internet Explorer settings to reduce warnings about malware activity.[1]
EnterpriseT1107File DeletionNanHaiShu launches a script to delete their original decoy file to cover tracks.[2]
EnterpriseT1170MshtaNanHaiShu uses mshta.exe to load its program and files.[2]
EnterpriseT1027Obfuscated Files or InformationNanHaiShu encodes files in Base64.[2]
EnterpriseT1060Registry Run Keys / Startup FolderNanHaiShu modifies the %regrun% Registry to point itself to an autostart mechanism.[2]
EnterpriseT1105Remote File CopyNanHaiShu can download additional files from URLs.[1]
EnterpriseT1064ScriptingNanHaiShu executes additional Jscript and VBScript code on the victim's machine.[2]
EnterpriseT1071Standard Application Layer ProtocolNanHaiShu uses DNS for the C2 communications.[2]
EnterpriseT1082System Information DiscoveryNanHaiShu can gather the victim computer name and serial number.[1]
EnterpriseT1016System Network Configuration DiscoveryNanHaiShu can gather information about the victim proxy server.[1]
EnterpriseT1033System Owner/User DiscoveryNanHaiShu collects the username from the victim.[2]


Groups that use this software: