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426 items tagged "shellcode"
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adjusted
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14:12
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Packet Storm Security Exploits
Sysax Multi Server version 5.52 and below file rename buffer overflow exploit with egghunter shellcode that spawns a shell on port 4444.
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17:07
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Packet Storm Security Recent Files
This shellcode writes down your code in the end of found files. Your code will be added only .html and .php files. Search for files is carried out recursively.
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17:07
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Packet Storm Security Misc. Files
This shellcode writes down your code in the end of found files. Your code will be added only .html and .php files. Search for files is carried out recursively.
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14:30
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Packet Storm Security Recent Files
Whitepaper called Bypassing IDS with Return Oriented Programming. It heavily discusses and shows the point of leveraging polymorphic shellcode in order to bypass detection.
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14:30
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Packet Storm Security Misc. Files
Whitepaper called Bypassing IDS with Return Oriented Programming. It heavily discusses and shows the point of leveraging polymorphic shellcode in order to bypass detection.
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19:00
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Packet Storm Security Recent Files
This is a simple tutorial that also provides a code example on doing a x64 xor encoder and loader for shellcode. hello_world, shell with setreuid, and portbind shellcode examples are provided.
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19:00
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Packet Storm Security Misc. Files
This is a simple tutorial that also provides a code example on doing a x64 xor encoder and loader for shellcode. hello_world, shell with setreuid, and portbind shellcode examples are provided.
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8:05
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Packet Storm Security Exploits
This Metasploit module exploits a vulnerability found on 7-Technologies IGSS 9. By supplying a long string of data to the 'Rename' (0x02), 'Delete' (0x03), or 'Add' (0x04) command, a buffer overflow condition occurs in IGSSdataServer.exe while handing an RMS report, which results arbitrary code execution under the context of the user. The attack is carried out in three stages. The first stage sends the final payload to IGSSdataServer.exe, which will remain in memory. The second stage sends the Add command so the process can find a valid ID for the Rename command. The last stage then triggers the vulnerability with the Rename command, and uses an egghunter to search for the shellcode that we sent in stage 1. The use of egghunter appears to be necessary due to the small buffer size, which cannot even contain our ROP chain and the final payload.
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8:05
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Packet Storm Security Recent Files
This Metasploit module exploits a vulnerability found on 7-Technologies IGSS 9. By supplying a long string of data to the 'Rename' (0x02), 'Delete' (0x03), or 'Add' (0x04) command, a buffer overflow condition occurs in IGSSdataServer.exe while handing an RMS report, which results arbitrary code execution under the context of the user. The attack is carried out in three stages. The first stage sends the final payload to IGSSdataServer.exe, which will remain in memory. The second stage sends the Add command so the process can find a valid ID for the Rename command. The last stage then triggers the vulnerability with the Rename command, and uses an egghunter to search for the shellcode that we sent in stage 1. The use of egghunter appears to be necessary due to the small buffer size, which cannot even contain our ROP chain and the final payload.
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8:05
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Packet Storm Security Misc. Files
This Metasploit module exploits a vulnerability found on 7-Technologies IGSS 9. By supplying a long string of data to the 'Rename' (0x02), 'Delete' (0x03), or 'Add' (0x04) command, a buffer overflow condition occurs in IGSSdataServer.exe while handing an RMS report, which results arbitrary code execution under the context of the user. The attack is carried out in three stages. The first stage sends the final payload to IGSSdataServer.exe, which will remain in memory. The second stage sends the Add command so the process can find a valid ID for the Rename command. The last stage then triggers the vulnerability with the Rename command, and uses an egghunter to search for the shellcode that we sent in stage 1. The use of egghunter appears to be necessary due to the small buffer size, which cannot even contain our ROP chain and the final payload.
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8:49
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Packet Storm Security Recent Files
A null-free shellcode for 32-bit versions of Windows 5.0 - 7.0 all service packs that uses the Microsoft Speech API to say "You got pwned!" over the speakers. Includes optional code that fixes stack alignment (adds 5 bytes) and bypasses EAF (adds 29 bytes).
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8:49
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Packet Storm Security Misc. Files
A null-free shellcode for 32-bit versions of Windows 5.0 - 7.0 all service packs that uses the Microsoft Speech API to say "You got pwned!" over the speakers. Includes optional code that fixes stack alignment (adds 5 bytes) and bypasses EAF (adds 29 bytes).
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21:25
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SecDocs
Authors:
Matthew de Carteret Tags:
shellcode Event:
Ruxcon 2010 Abstract: Shellcode is the crux of any exploit being run today. It dictates what the exploit aims to gain from its use — without shellcode the exploit does nothing. Understanding what shellcode does can be a major step in the incident handling process. Shellcode can do anything you can imagine code could do. Not every shellcode used in an exploit downloads malware or spawns a shell. Times have changed and the targets have updated their protection. Shellcode today could be a straight forward API call to download a file and execute it or it could be code to just disable/create a firewall rule on your windows server. Catching an exploit is a great step in understanding the purpose of an attack. Extracting and reviewing the shellcode will allow you to streamline your incident handlers to collect malware and focus their reviews on particular services or applications. This talk will demonstrate methods on captured exploits for extracting shellcode and understanding its purpose.