Trojan-Spy.Win32.Zbot.aawo.Zeus-Builder Insecure Permissions

`Discovery / credits: Malvuln - malvuln.com (c) 2022  
Original source: https://malvuln.com/advisory/fe0dacbc953d4301232b386fcb3afc23.txt  
Contact: [email protected]  
Media: twitter.com/malvuln  
  
Threat: Trojan-Spy.Win32.Zbot.aawo.Zeus-Builder  
Vulnerability: Insecure Permissions  
Description: ZeuS Builder saves PE files to the c drive with insecure permissions granting change (C) permissions to the authenticated user group. Standard users can rename the executable dropped by the malware to disable it or replace it with their own executable. Then wait for a privileged user to logon to the infected machine to potentially escalate privileges.  
Type: PE32  
MD5: fe0dacbc953d4301232b386fcb3afc23  
Vuln ID: MVID-2022-0493  
Disclosure: 02/16/2022  
  
Exploit/PoC:  
ZeuS Builder  
  
Config and loader building  
  
Loading config from file 'C:\Users\Victim\Desktop\config2.txt'...  
Loading succeeded!  
Building bot file...  
botnet=test  
timer_config=120000ms, 60000ms  
timer_logs=120000ms, 60000ms  
timer_stats=120000ms, 60000ms  
url_config=http://192.168.1.100/web/cfg_test.bin  
url_compip=http://myip.ru  
encryption_key=OK  
Build succeeded!  
  
C:\>cacls ldr_test.exe  
C:\ldr_test.exe BUILTIN\Administrators:(ID)F  
NT AUTHORITY\SYSTEM:(ID)F  
BUILTIN\Users:(ID)R  
NT AUTHORITY\Authenticated Users:(ID)C  
  
  
C:\>dir ldr_test.exe  
Volume in drive C has no label.  
  
Directory of C:\  
  
02/14/2022 03:19 AM 61,440 ldr_test.exe  
1 File(s) 61,440 bytes  
0 Dir(s) 26,621,710,336 bytes free  
  
  
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