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Difference between revisions of "ASR"
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__text:00014228 ; --------------------------------------------------------------------------- |
__text:00014228 ; --------------------------------------------------------------------------- |
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| − | See also the patch mentioned here: [[Preventing_Baseband_Update#asr]]. |
+ | See also the patch mentioned here: [[Preventing_Baseband_Update#asr]] and here: [[Making_PwnageTool_Bundles#ASR]]. |
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Revision as of 19:37, 14 August 2011
Apple System Restore.
Application found on the Restore/Update Ramdisks. It writes the rootfs image to the actual system drive (ASR RESTORE), then checksums it. (ASR VERIFY)
ASR Verify Disassembly
__text:00014204 loc_14204 ; CODE XREF: sub_13AB4+61E�j __text:00014204 ; sub_13AB4+73E�j __text:00014204 LDR R3, =(off_235E8 - 0x1420A) __text:00014206 ADD R3, PC __text:00014208 LDR R3, [R3] __text:0001420A LDR R3, [R3] __text:0001420C CMP R3, #0 __text:0001420E BEQ loc_1427A __text:00014210 LDR R0, =(aImagePassedSig - 0x14216) __text:00014212 ADD R0, PC ; "Image passed signature verification" __text:00014214 BLX _warnx __text:00014218 B loc_1427A __text:0001421A ; --------------------------------------------------------------------------- __text:0001421A __text:0001421A loc_1421A ; CODE XREF: sub_13AB4+622�j __text:0001421A ; sub_13AB4+628�j ... __text:0001421A LDR.W R0, =(aImageFailedSig - 0x14222) __text:0001421E ADD R0, PC ; "Image failed signature verification" __text:00014220 BLX _warnx __text:00014224 MOVS R2, #0x50 __text:00014226 B loc_1426E __text:00014228 ; ---------------------------------------------------------------------------
See also the patch mentioned here: Preventing_Baseband_Update#asr and here: Making_PwnageTool_Bundles#ASR.
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