Currently, most FTP servers adopt the Serv-U architecture. However, as injection vulnerabilities and Trojans flood, many hosts become bots. Downloading the Serv-U password file can easily crack the file, which is very dangerous for FTP and the entire server!
Let's take a look at MD5CRACK (click to download), which is currently the fastest MD5 cracking software on the Internet, and the latest function adds Serv-U ciphertext cracking. Before cracking, let's take a look at the principles. Serv-U encryption algorithm:
Step 1: generate two random characters (preferably lowercase letters );
Step 2: add the string generated in step 1 with the required password MD5;
Step 3: add the two characters in step 1 to the uppercase of the MD5 code generated in step 2.
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Page 7: FTP Server Software Serv-U password cracked |
Page 7: FTP Server Software Serv-U password cracked |