iPhone Rootkit? There's an App for that! - Reverse Engineering Mac ...

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So What Now?Plenty of interesting locations to explore on a rooted iPhone filesystem• Emails− /var/mobile/Library/Mail/• “Protected Index”− (SQLite for message metadata)• “Envelope Index”− (SQLite for email folders metadata)• IMAP-victim@victimco.com@imapserver.victimco.com/− (mailbox for your IMAP accounts)• ExchangeActiveSyncXXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX/− (mailbox for victim’s exchange GUID XX…)• …etc.• Voicemails− /var/mobile/Library/Voicemail/• voicemail.db− (SQLite for message metadata)• /var/mobile/Library/Voicemail/*.amr− (Audio – Download and open in Quicktime)• SMS Messages− /var/mobile/Library/SMS/• sms.db− (SQLite for message metadata)• Parts/…− (TXT msg’s and msg parts for MMS)Copyright Trustwave 2010
Hardware: Mic and AudioAudio recording apps are the “hello world” for the iPhoneGoogle Core Audio and AudioToolBox.frameworkMy first rootkit app was “playaudio”First rootkit fart app… “playaudio fart.aif”My second was “recordaudio”Only slightly harder. Lots of tutorials.Copyright Trustwave 2010
Page 5 and 6: iPhone/iOS Security Overview
Page 7 and 8: Architecture OverviewApplications P
Page 9 and 10: Application SecurityCode signing•
Page 11 and 12: Jailbreaking Overview
Page 13 and 14: Jailbreakme.com A Thing to Behold
Page 15 and 16: What it looks likeVisit h'p://jailb
Page 17 and 18: Weaponizing
Page 19 and 20: Patch PlanReversing the installui.d
Page 21 and 22: My “Big Fat Rootkit”… so farC
Page 23: Set-upA vanilla un-jailbroken iPhon
Page 27 and 28: Dumping Process DataSeveral interes
Page 29 and 30: Targeting iOS ApplicationsiOS isn
Page 31 and 32: Demo App Backdoor
Page 33 and 34: Binary Reversing Prep (continued…
Page 35 and 36: No More SecretsHint: find the LC
Page 37 and 38: Mach Binary Encryption (continued
Page 39 and 40: What’s your point?For starters…
Page 41 and 42: Objective-C Method HookingIt’s ca
Page 43 and 44: Objective-C Method Hook ExampleLets
Page 45 and 46: Injecting Our LibraryConventionally
Page 47 and 48: ConclusionsLots of security researc
Page 49 and 50: Reversing Redux: The Binary “star
Page 51 and 52: … continued: eggMalformed Times-
Page 53 and 54: class-dump on installui.dylib (aka

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