← All detection heuristics · Script
critical
WINDOWS_PS_SCREENSHOT_UPLOAD_EXFIL
What it means
PowerShell captures the desktop and uploads saved screenshots with WebClient.
Why it fires
The script combines screen capture, bitmap persistence, and WebClient UploadFile using FTP/STOR semantics. Together these operations form a high-confidence screenshot-exfiltration chain.
Other Script heuristics
SCRIPT_WSH_OBFUSCATED WINDOWS_PS_ADDTYPE_WINAPI_TAMPER LNK_POWERSHELL_BIGINT_NETWORK_ENDPOINT WINDOWS_SCRIPT_CERTUTIL_RUNDLL_CHAIN SCRIPT_WSH_STREAM_WRITE_RUN_CHAIN WINDOWS_SCHEDULED_TASK_SCRIPT_EXEC WINDOWS_SCRIPT_BASE64_BINARY_DROPPER LNK_SCRIPT_DOWNLOADER MACOS_ZSH_LOADER SCRIPT_HEAVY_STRING_DECODER_OBFUSCATION SCRIPT_WSH_MASQUERADE LNK_HIDDEN_SCRIPT_EXEC