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warsn

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Everything posted by warsn

  1. Meta doesen't care avand in vedere ca acm cateva luni telegram avea aceeasi problema
  2. (Not my tool) Download r77 Rootkit Fileless ring 3 rootkit r77 is a ring 3 rootkit that hides everything: Files, directories Processes & CPU/GPU usage Registry keys & values Services TCP & UDP connections Junctions, named pipes, scheduled tasks Hiding by prefix Everything that starts with "$77" is hidden. Configuration System The dynamic configuration system allows to hide processes by PID and by name, file system items by full path, TCP & UDP connections of specific ports, etc. The configuration is located in HKEY_LOCAL_MACHINE\SOFTWARE\$77config and is writable by any process without elevated privileges. The DACL of this key is set to grant full access to any user. In addition, the $77config key is hidden by the rootkit. Installer The deployment of r77 requires only one file: Install.exe. Execution persists r77 on the system and injects all running processes. Uninstall.exe removes r77 from the system completely, and gracefully. Install.shellcode is the shellcode equivalent of the installer. This way, the installation can be integrated without dropping Install.exe. The shellcode can simply be loaded into memory, casted to a function pointer, and executed: int main() { // 1. Load Install.shellcode from resources or from a BYTE[] // Ideally, encrypt the file and decrypt it here to avoid scantime detection. LPBYTE shellCode = ... // 2. Make the shellcode RWX. DWORD oldProtect; VirtualProtect(shellCode, shellCodeSize, PAGE_EXECUTE_READWRITE, &oldProtect); // 3. Cast the buffer to a function pointer and execute it. ((void(*)())shellCode)(); // This is the fileless equivalent to executing Install.exe. return 0; } Execution flow The rootkit resides in the system memory and does not write any files to the disk. This is achieved in multiple stages. This graph shows each stage from the execution of the installer all the way down to the rootkit DLL running in every process. The documentation has a chapter with extensive detail about the implementation of each stage. AV/EDR evasion Several AV and EDR evasion techniques are in use: AMSI bypass: The PowerShell inline script disables AMSI by patching amsi.dll!AmsiScanBuffer to always return AMSI_RESULT_CLEAN. Polymorphism is used to evade signature detection of the AMSI bypass. DLL unhooking: Since EDR solutions monitor API calls by hooking ntdll.dll, these hooks need to be removed by loading a fresh copy of ntdll.dll from disk and restoring the original section. Otherwise, process hollowing would be detected. Test environment The Test Console is a useful tool to inject r77 into individual processes and to test drive the configuration system. Technical Documentation Please read the technical documentation to get a comprehensive and full overview of r77 and its internals, and how to deploy and integrate it.
  3. Quasar [Download] Quasar is a fast and light-weight remote administration tool coded in C#. The usage ranges from user support through day-to-day administrative work to employee monitoring. Providing high stability and an easy-to-use user interface, Quasar is the perfect remote administration solution for you. Features TCP network stream (IPv4 & IPv6 support) Fast network serialization (Protocol Buffers) Encrypted communication (TLS) UPnP Support (automatic port forwarding) Task Manager File Manager Startup Manager Remote Desktop Remote Shell Remote Execution System Information Registry Editor System Power Commands (Restart, Shutdown, Standby) Keylogger (Unicode Support) Reverse Proxy (SOCKS5) Password Recovery (Common Browsers and FTP Clients) ... and many more!
  4. Nu cred ca sunt in masura sa vorbesc ca si membru nou, dar comunitati din RO de cybersec nu prea mai sunt sau cel putin nu am dat eu de ele, majoritatea ca si mine isi petrec timpul pe alte forumuri care nu au reguli de ce sa postezi si etc si acolo indiferent ca esti white hat sau nu suntem la imbulzeala toti si fiecare posteaza ce vrea. Mie forumul asta chiar imi place dar avand in vedere ca nu prea sunt useri noi care sa incerce sa dea "revive" nush ce sa zic. Probabil sunt doar eu dar cand fac o postare pe unul dintre forumurile de alt gen primesc un alt tip de feedback si te face sa te implici mai mult in comunitate but idk maybe its just me.
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