Date: Tue, 6 Sep 2022 20:14:31 -0400
From: malvuln <malvuln13@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Trojan-Ransom.Win32.Hive.bv / Arbitrary Code Execution

Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source:
https://malvuln.com/advisory/44aba241dd3f0d156c6ed82a0ab3a9e1.txt
Contact: malvuln13@...il.com
Media: twitter.com/malvuln

Threat: Trojan-Ransom.Win32.Hive.bv
Vulnerability: Arbitrary Code Execution
Description: Hive Ransomware will load and execute arbitrary .EXE PE files
if a third-party adversary or defender uses the vulnerable naming
convention of "vssadmin.exe" or "wmic.exe" and the PE file is placed in the
vacinity of Hive Ransomware when it is executed.
Family: Hive
Type: PE64
MD5: 44aba241dd3f0d156c6ed82a0ab3a9e1
Vuln ID: MVID-2022-0636
Disclosure: 09/06/2022


Exploit/PoC:
1) Compile to "vssadmin.exe"
2) Supplying Hive CL credentials e.g. -u <login>:<password>

"vssadmin.c"

#include "windows.h"
#include "tlhelp32.h"
#include "psapi.h"

//Compiled x64
//By Malvuln - 2022
//Purpose: RCE PWN Hive Ransomware
//MD5: 44aba241dd3f0d156c6ed82a0ab3a9e1
/** DISCLAIMER:
Author is NOT responsible for any damages whatsoever by using this software
or improper malware
handling. By using this code you assume and accept all risk implied or
otherwise.
**/

DWORD getParentPID(DWORD pid){
    HANDLE h32 = NULL;
    PROCESSENTRY32 pe = {0};
    DWORD ppid = 0;
    pe.dwSize = sizeof(PROCESSENTRY32);
    h32 = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
    if(Process32First(h32, &pe)){
        do{
            if (pe.th32ProcessID == pid){
                ppid = pe.th32ParentProcessID;
                break;
            }
        } while( Process32Next(h32, &pe));
    }
    CloseHandle(h32);
    return (ppid);
}

int main(void){
    DWORD ppid = getParentPID(GetCurrentProcessId());
    HANDLE handle = OpenProcess(PROCESS_TERMINATE, FALSE, ppid);
     if (NULL != handle) {
        TerminateProcess(handle, 0);
       CloseHandle(handle);
       MessageBox(NULL, "Not the vssadmin.exe you wanted :(\nHive
Ransomware PWNED!\n\nBy Malvuln", "Code Execution PoC\n", MB_OK);
     }
    return 0;
}


Disclaimer: The information contained within this advisory is supplied
"as-is" with no warranties or guarantees of fitness of use or otherwise.
Permission is hereby granted for the redistribution of this advisory,
provided that it is not altered except by reformatting it, and that due
credit is given. Permission is explicitly given for insertion in
vulnerability databases and similar, provided that due credit is given to
the author. The author is not responsible for any misuse of the information
contained herein and accepts no responsibility for any damage caused by the
use or misuse of this information. The author prohibits any malicious use
of security related information or exploits by the author or elsewhere. Do
not attempt to download Malware samples. The author of this website takes
no responsibility for any kind of damages occurring from improper Malware
handling or the downloading of ANY Malware mentioned on this website or
elsewhere. All content Copyright (c) Malvuln.com (TM).
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