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peacock HMAC key frida hook script, use frida 14.2.18
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function jhexdump(array) { | |
if(!array) return; | |
console.log("---------jhexdump start---------"); | |
var ptr = Memory.alloc(array.length); | |
for(var i = 0; i < array.length; ++i) | |
Memory.writeS8(ptr.add(i), array[i]); | |
console.log(hexdump(ptr, {offset: 0, length: array.length, header: false, ansi: false})); | |
console.log("---------jhexdump end---------"); | |
} | |
function java_hook(){ | |
Java.perform(function(){ | |
let HMACCls = Java.use("com.sky.sps.security.HMAC"); | |
let SecurityUtilsCls = Java.use("com.sky.sps.utils.SecurityUtils"); | |
let SecretKeySpecCls = Java.use("javax.crypto.spec.SecretKeySpec"); | |
let MacCls = Java.use("javax.crypto.Mac"); | |
HMACCls.calculate.overload('java.lang.String', 'boolean').implementation = function(text, flag){ | |
console.log("---------enter calculate---------"); | |
let ret = this.calculate(text, flag); | |
console.log(text, flag, ret); | |
jhexdump(ret); | |
return ret; | |
} | |
SecurityUtilsCls.createMD5Digest.overload('java.lang.String').implementation = function(text){ | |
console.log("---------enter createMD5Digest---------"); | |
let ret = this.createMD5Digest(text); | |
console.log(text, ret); | |
return ret; | |
} | |
SecretKeySpecCls.$init.overload('[B', 'java.lang.String').implementation = function(key, method){ | |
console.log("---------enter SecretKeySpec init---------"); | |
jhexdump(key); | |
let ret = this.$init(key, method); | |
console.log(key, method, ret); | |
return ret; | |
} | |
MacCls.doFinal.overload('[B').implementation = function(data){ | |
console.log("---------enter SecretKeySpec init---------"); | |
jhexdump(data); | |
let ret = this.doFinal(data); | |
console.log(data, ret); | |
return ret; | |
} | |
}) | |
} | |
setImmediate(java_hook) | |
// frida 14.2.18 | |
// frida -U -n com.peacocktv.peacockandroid -l peacock.js -o peacock.log |
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