2023-10-23

for credit thorn got this first, then i got the deobfuscator python script working and output the flag 
replacementdict = {
    "grtoy": "a",
    "kbhoesxh": "b",
    "fxflckau": "c",
    "pxesvvz": "d",
    "aeawgno": "e",
    "vdqvoyxss": "f",
    "mljmage": "g",
    "dtqahrd": "h",
    "xrghxw": "i",
    "rvrcd": "j",
    "cxqemy": "k",
    "djkxbuskp": "l",
    "auuhztfa": "m",
    "znvbyce": "n",
    "exoypdqzg": "o",
    "upogfi": "p",
    "xulqq": "q",
    "jxiczrrc": "r",
    "qihgjzq": "s",
    "ldawonn": "t",
    "edefpb": "u",
    "giknplvpv": "v",
    "fbvra": "w",
    "klerqtt": "x",
    "puufauef": "y",
    "lhuzd": "z",
    "iwwna": "A",
    "ilajhm": "B",
    "hzsouxmm": "C",
    "dqutqsgb": "D",
    "jkkvc": "E",
    "ioexkmd": "F",
    "jmcpbpld": "G",
    "udpmq": "H",
    "rbijdi": "I",
    "qzpkv": "J",
    "ikedxdamk": "K",
    "stcjm": "L",
    "majmn": "M",
    "utjscfnmq": "N",
    "bpxroxnqg": "O",
    "hrleb": "P",
    "wzprdlp": "Q",
    "fikmapqe": "R",
    "lwuwiovpd": "S",
    "lftuiqz": "T",
    "vogsuisdx": "U",
    "bsslmcgic": "V",
    "oyyfmilg": "W",
    "lhniwqwff": "X",
    "nvfosjl": "Y",
    "ajexk": "Z",
    "flopojsse": "0",
    "tqjmbt": "1",
    "wpwjwymw": "2",
    "wxkugd": "3",
    "fxqik": "4",
    "zygcfg": "5",
    "remydays": "6",
    "ztvra": "7",
    "yqdie": "8",
    "lzyqwgi": "9",
    "koimdqluu": "{",
    "tleci": "}",
    "vgysuv": "?",
    "xpjaysvii": ":",
    "nvsna": ".",
    "vrzatob": "=",
    "orutn": ",",
    "hmjhafbu": ""
}

def replace_all(text, dic):
    for i, j in dic.items():
        text = text.replace(f"%{i}%", j)
    return text

with open("batchfuscation", "r") as file:
    content = file.read()

new_content = replace_all(content, replacement_dict)

with open("deobfuscated.txt", "w") as file:
    file.write(new_content)

flag{acad67e3d0b5bf31ac6639360db9d19a}