A Dridex loader DLL that dynamically resolves APIs via CRC32 hashing, uses int3/retn as an indirect call mechanism to evade analysis, decrypts embedded strings with RC4, and connects to four hardcoded C2 servers over HTTPS to download additional modules.
A .NET XWorm RAT that establishes triple persistence via scheduled task, startup shortcut, and registry Run key, implements keylogging, clipboard hijacking for crypto wallets, and communicates with multiple C2 servers over TCP using AES-ECB encrypted payloads.
A fake therapy installer distributed as an NSIS self-extracting archive delivers an Electron-based Node.js infostealer that performs anti-VM checks, injects malicious code into Discord clients, and exfiltrates browser credentials, cookies, autofill data, and Discord tokens to a hardcoded C2.
A Go-based backdoor that copies itself to a system directory, establishes persistence via a registry Run key, enumerates connected drives, and attempts to connect to a hardcoded C2 domain.
Reverse engineering PHORPIEX dropper - analyzing clipboard hijacking, USB spreading, and UPnP NAT traversal techniques.
Analyzed two process dumps (notepad.exe and update.exe) revealing a Cobalt Strike Beacon infection. The malware used process injection with reflective DLL loading, communicated with C2 server at 101.10.25.4:8023, and possessed capabilities for privilege escalation, token manipulation, and lateral movement via named pipes.
A .NET DLL decodes architecture-specific shellcode from an embedded base64 string, allocates executable memory, and spawns a thread to execute it. The shellcode performs NTDLL unhooking, AMSI and ETW patching before executing an embedded PE payload identified as a PoshC2 dropper.
C2 .NET implant. AES-encrypted config, HTTPS beacon to 192.168.248.128, fileless in-memory execution, anti-debug via divide-by-zero.