I've got a Encrypted String, and I need to decrypt it:

The information that I have: 

* Encryption Used: RFC3826 (AES-128 ECB)
* Encrypted String: AjL4iV8YSGnNOCQYOJXIP97GjCAYp2k0QLm56XxJN0p/yu5xQh5uitX3UmfP3bzZaXDd2u6hMwp6cxO3cNL1cg==
* Key: MySecretKey

When I use the following website, I can decrypt it with no problem:

(<https://www.devglan.com/online-tools/aes-encryption-decryption>)

Final Result: 

* Base64: ZTY3OTkzMmQtMTJiMi00OGEyLThlZjctMzAxY2RiOWFiNTdiMjg5WUgzSVRJWFJI
* Plain Text: e679932d-12b2-48a2-8ef7-301cdb9ab57b289YH3ITIXRH

When I am trying to use OpenSSL to Decrypt It, I've got special characters:

openssl enc -aes-128-ecb -d -a -nopad -nosalt -pass pass:MySecretKey -in string.txt

Output String:
ûUzÊVmwN☺+æ¨+\Ë¨Ì┬cåÁ⌂▄B░×H·4é▀+>╦ G├[ëæ│\_i(A&1·:0>▼è³0r

Am I doing something wrong?