IOS微信逆向-免越狱抢红包防撤回等自定义功能实现

微信砸壳

CrackerXI+砸壳，或手动使用dumpdecrypted砸壳

把已砸壳的wech使用scp或者助手at.ipa导出

 

monkeydev

MonkeyDev集成在xcode上面，可以快速开发hook的代码，链接到Mach-O文件，支持修改ipa后的免越狱安装。

新建MonkeyDev项目

 

把砸壳后的微信ipa拖进工程中的TargetApp目录

run编译真机调试

打开微信设置页面，xcode打开Debug View Hierarychy查看层级。

新增控件类WCTableViewManager 

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%hook NewSettingViewController - (void)reloadTableData{     %orig;     WCTableViewManager *tableViewMgr = MSHookIvar<id>(self, "m_tableViewMgr");     MMTableView *tableView = [tableViewMgr getTableView];     WCTableViewNormalCellManager *newCell = [%c(WCTableViewNormalCellManager) normalCellForSel:@selector(setting) target:self title:@"你懂的"];     [((WCTableViewSectionManager*)tableViewMgr.sections[0]) addCell: newCell];     [tableView reloadData]; } %new - (void)setting {     UIViewController *vc = [[HZWechatSettingController alloc] init];     [((UIViewController *)self).navigationController PushViewController:vc animated:true]; } %end

新增自动抢红包、消息防撤回、微信步数修改选项

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WCTableViewCellManager *autoEnvelopCell = [HZWechat switchCellWithSel:@selector(autoEnvelopSwitchChange:) target:self title:@"自动抢红包" switchOn:[HZWechatConfig autoRedEnvelop]]; [nidongde addCell:autoEnvelopCell]; WCTableViewCellManager *revokeIntercept = [HZWechat switchCellWithSel:@selector(revokeIntercept:) target:self title:@"消息防撤回" switchOn:[HZWechatConfig preventRevoke]]; [nidongde addCell:revokeIntercept]; WCTableViewCellManager *changeStepsCell = [HZWechat switchCellWithSel:@selector(changedSteps:) target:self title:@"修改微信步数" switchOn:[HZWechatConfig changeSteps]]; [nidongde addCell:changeStepsCell];

hook红包消息实现自动抢 

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BOOL (^shouldReceiveRedEnvelop)() = ^BOOL() {                     if (!HZWechatConfig.autoRedEnvelop) { return NO; }                     if (isGroupInBlackList()) { return NO; }                     if (isContaintKeyWords()) { return NO; }                     return isGroupReceiver() ||                            (isGroupSender() && isReceiveSelfRedEnvelop()) ||                            (!isGroupReceiver() && HZWechatConfig.personalRedEnvelopEnable);                 };                 NSDictionary *(^parseNativeUrl)(NSString *nativeUrl) = ^(NSString *nativeUrl) {                     nativeUrl = [nativeUrl substringFromIndex:[@"wxpay://c2cbizmessagehandler/hongbao/receivehongbao?" length]];                     return [%c(WCBizUtil) dictionaryWithDecodedComponets:nativeUrl separator:@"&"];                 };

防撤回实现

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%hook CMessageMgr   - (void)onRevokeMsg:(CMessageWrap *)arg1 {     if (HZWechatConfig.preventRevoke) {         NSString *msgContent = arg1.m_nsContent;         NSString *(^parseParam)(NSString *, NSString *,NSString *) = ^NSString *(NSString *content, NSString *paramBegin,NSString *paramEnd) {             NSUInteger startIndex = [content rangeOfString:paramBegin].location + paramBegin.length;             NSUInteger endIndex = [content rangeOfString:paramEnd].location;             NSRange range = NSMakeRange(startIndex, endIndex - startIndex);             return [content substringWithRange:range];         };         NSString *session = parseParam(msgContent, @"", @"");         NSString *newmsgid = parseParam(msgContent, @"", @"");         NSString *fromUsrName = parseParam(msgContent, @", @"撤回了一条消息");         CMessageWrap *revokemsg = [self GetMsg:session n64SvrID:[newmsgid integerValue]];         CContactMgr *contactMgr = [[objc_getClass("MMServiceCenter") defaultCenter] getService:objc_getClass("CContactMgr")];         CContact *selfContact = [contactMgr getSelfContact];         NSString *newMsgContent = @"";         if ([revokemsg.m_nsFromUsr isEqualToString:selfContact.m_nsUsrName]) {             if (revokemsg.m_uiMessageType == 1) {       // 判断是否为文本消息                 newMsgContent = [NSString stringWithFormat:@"拦截到你撤回了一条消息：\n %@",revokemsg.m_nsContent];             } else {                 newMsgContent = @"拦截到你撤回一条消息";             }         } else {             if (revokemsg.m_uiMessageType == 1) {                 newMsgContent = [NSString stringWithFormat:@"拦截到一条 %@撤回消息：\n %@",fromUsrName, revokemsg.m_nsContent];             } else {                 newMsgContent = [NSString stringWithFormat:@"拦截到一条 %@撤回消息",fromUsrName];             }         }         CMessageWrap *newWrap = ({             CMessageWrap *msg = [[%c(CMessageWrap) alloc] initWithMsgType:0x2710];             [msg setM_nsFromUsr:revokemsg.m_nsFromUsr];             [msg setM_nsToUsr:revokemsg.m_nsToUsr];             [msg setM_uiStatus:0x4];             [msg setM_nsContent:newMsgContent];             [msg setM_uiCreateTime:[arg1 m_uiCreateTime]];             msg;         });         [self AddLocalMsg:session MsgWrap:newWrap fixTime:0x1 NewMsgArriveNotify:0x0];         return;     }     %orig; } %end

修改微信运动步数

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%hook WCDeviceStepObject -(NSInteger)m7StepCount {     NSInteger stepCount = %orig;     NSInteger newStepCount = HZWechatConfig.changedSteps;     return HZWechatConfig.changeSteps ? newStepCount : stepCount; } -(NSInteger)hkStepCount {     NSInteger stepCount = %orig;     NSInteger newStepCount = HZWechatConfig.changedSteps;     return HZWechatConfig.changeSteps ? newStepCount : stepCount; } %end

自签名打包后实现多开，配合AltDeploy+AltStore食用更佳

 感谢