Checks computer location settings

Looks up country code configured in the registry, likely geofence.

Creates a file in the Startup directory

A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.

Executes a file named after a Windows system binary

The file runs from a user directory while carrying the name of an executable that normally only exists in System32.

Executes dropped EXE

Reads user/profile data of web browsers

Infostealers often target stored browser data, which can include saved credentials etc.

Adds Run key to start application

Contacts third-party web service commonly abused for C2

Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

Detects references to legitimate web services potentially used as dead drop resolvers

Detects Telegram, Steam, and other legitimate web-service references that may be used to retrieve secondary C2 infrastructure.

Looks up external IP address via web service

Uses a legitimate IP lookup service to find the infected system's external IP.

Windows malware employing anti-VM / anti-sandbox evasion techniques (VMware, VirtualBox, Hyper-V, QE

Hunting rule for Windows malware that tries to detect virtualized or sandboxed environments. Fires on combinations of VM vendor registry keys, guest-tool files, CPUID hypervisor brands, the VMware backdoor I/O port, WMI fingerprint queries, timing-based stalling, sandbox artifacts, username/hostname

Executes a VBScript file via the Windows Script Host.

Suspicious use of SetThreadContext