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| 02.25.2008 at 10:31AM PST, ID: 23191086 |
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0: kd> !analyze -v ******************************************************************************* * * * Bugcheck Analysis * * * ******************************************************************************* DRIVER_OVERRAN_STACK_BUFFER (f7) A driver has overrun a stack-based buffer. This overrun could potentially allow a malicious user to gain control of this machine. DESCRIPTION A driver overran a stack-based buffer (or local variable) in a way that would have overwritten the function's return address and jumped back to an arbitrary address when the function returned. This is the classic "buffer overrun" hacking attack and the system has been brought down to prevent a malicious user from gaining complete control of it. Do a kb to get a stack backtrace -- the last routine on the stack before the buffer overrun handlers and bugcheck call is the one that overran its local variable(s). Arguments: Arg1: 00000000, Actual security check cookie from the stack Arg2: 00000000, Expected security check cookie Arg3: 00000000, Complement of the expected security check cookie Arg4: 00000000, zero Debugging Details: ------------------ DEFAULT_BUCKET_ID: GS_FALSE_POSITIVE_MISSING_GSFRAME CUSTOMER_CRASH_COUNT: 12 BUGCHECK_STR: 0xF7 PROCESS_NAME: msnmsgr.exe LAST_CONTROL_TRANSFER: from f88aef5c to 804f9deb STACK_TEXT: a9f0a898 f88aef5c 000000f7 00000000 00000000 nt!KeBugCheckEx+0x1b WARNING: Stack unwind information not available. Following frames may be wrong. a9f0aa6c 80581f6e 82f11158 82c33c04 a9f0ac04 ZVONLINE+0x1f5c a9f0ab4c 805bddc0 82f11170 00000000 82c33b60 nt!IopParseDevice+0xa12 a9f0abc4 805ba448 00000000 a9f0ac04 00000040 nt!ObpLookupObjectName+0x53c a9f0ac18 80574ec1 00000000 00000000 9768b801 nt!ObOpenObjectByName+0xea a9f0ac94 80575838 0349f5bc 00110180 0349f4d0 nt!IopCreateFile+0x407 a9f0acf0 80577f02 0349f5bc 00110180 0349f4d0 nt!IoCreateFile+0x8e a9f0ad30 8054086c 0349f5bc 00110180 0349f4d0 nt!NtCreateFile+0x30 a9f0ad30 7c90eb94 0349f5bc 00110180 0349f4d0 nt!KiFastCallEntry+0xfc 0349f48c 00000000 00000000 00000000 00000000 0x7c90eb94 STACK_COMMAND: kb FOLLOWUP_IP: ZVONLINE+1f5c f88aef5c ?? ??? SYMBOL_STACK_INDEX: 1 SYMBOL_NAME: ZVONLINE+1f5c FOLLOWUP_NAME: MachineOwner MODULE_NAME: ZVONLINE IMAGE_NAME: ZVONLINE.SYS DEBUG_FLR_IMAGE_TIMESTAMP: 4631c278 FAILURE_BUCKET_ID: 0xF7_MISSING_GSFRAME_ZVONLINE+1f5c BUCKET_ID: 0xF7_MISSING_GSFRAME_ZVONLINE+1f5c Followup: MachineOwner |