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Code intended as a payload to exploit a software vulnerability
Shellcode is executable code intended to be used as a payload for exploiting a software vulnerability. The term includes shell because the attack originally
Shellcode
Anomaly in computer security and programming
the attacker, usually called the shellcode. Once the function returns, execution will resume at the attacker's shellcode; By overwriting a function pointer
Buffer_overflow
Computer security testing tool
target machine. Other important sub-projects include the Opcode Database, shellcode archive and related research. The Metasploit Project includes anti-forensic
Metasploit
Sequence in no-operation instructions
instruction to perform a relative jump to the top of the buffer where the shellcode is located. This collection of no-ops is referred to as the "NOP-slide"
NOP_slide
Software anomaly
actual stack buffer overflow exploit the string of "A"'s would instead be shellcode suitable to the platform and desired function. If this program had special
Stack_buffer_overflow
Set of alphabetic and numeric characters
similarities can include 5 and S, Z and 2. Alphanumeric brand names Alphanumeric shellcode Alphanumeric keyboard Binary-to-text encoding Mathematical Alphanumeric
Alphanumericals
Self-modifying program code designed to defeat anti-virus programs or reverse engineering
code in a CPU. This technique is sometimes used by computer viruses, shellcodes and computer worms to hide their presence. Encryption is the most common
Polymorphic_code
2003 book by Jon "Smibbs" Erickson
Particularly noteworthy is the addition of a chapter on sockets. 0x500 Shellcode: Shellcode is a custom code written by a hacker for execution upon gaining control
Hacking: The Art of Exploitation
Hacking:_The_Art_of_Exploitation
Computer security exploitation
arbitrary files from the internet. The second strategy involves writing shellcode to memory, and then exploiting vulnerabilities in the web browser or plugin
Drive-by_download
Reverse-engineering platform developed by Vector 35 Inc
several commonly used transformations and encryption algorithms. The shellcode compiler allows the user to compile and insert code via C syntax. Binary
Binary_Ninja
Text editor and source code editor for Windows
resulting payload. This then sideloads a malicious DLL which loads the shellcode file into memory, and then decrypts and executes it, allowing command
Notepad++
Computer security technique
locate the code to be executed, while other attackers trying to execute shellcode injected on the stack have to find the stack first. In both cases, the
Address space layout randomization
Address_space_layout_randomization
Hacker group
2017 NotPetya cyberattack on June 27, 2017. ETERNALBLUE contains kernel shellcode to load the non-persistent DoublePulsar backdoor. This allows for the
The_Shadow_Brokers
Method of encoding characters in a URI
characters on the URI protocol Punycode – Encoding for Unicode domain names Shellcode – Code intended as a payload to exploit a software vulnerability User-agent
Percent-encoding
Free and open-source anonymity network based on onion routing
versions of the Tor Browser Bundle were vulnerable to a JavaScript-deployed shellcode attack, as NoScript was not enabled by default. Attackers used this vulnerability
Tor_(network)
Representation of binary data as text
encodings, such as base128, between PETSCII-speaking machines. Alphanumeric shellcode – Code intended as a payload to exploit a software vulnerabilityPages
Binary-to-text_encoding
American hacker convention
Hack Fortress, a locksport village hosted by TOOOL DC, and Ghost in the Shellcode. The first event was held in 2005, with its last year was in 2025. Each
ShmooCon
Mechanism used by computer virus to generate a decryptor
viruses and worms Metamorphic code Self-modifying code Alphanumeric shellcode Shellcode Software cracking Security cracking Obfuscated code Szor, Peter (2005)
Oligomorphic_code
collection of gadgets can be constructed, which is more than enough to get a shellcode executed. One assumption which ROP makes is that the attacker possesses
Blind return-oriented programming
Blind_return-oriented_programming
Japanese locution: 'it cannot be helped'
adopted by the Metasploit computer penetration framework as the name of a shellcode encoder. It uses polymorphic XOR additive feedback to ensure that the
Shikata_ga_nai
Method of attack on computer systems
Hacking: The Art of Exploitation (second edition) IT risk Metasploit Shellcode w3af Latto, Nica (2020-09-29). "Exploits: What You Need to Know". Exploits:
Exploit_(computer_security)
2017 worldwide ransomware cyberattack
2017. Retrieved 18 April 2017. "DoublePulsar Initial SMB Backdoor Ring 0 Shellcode Analysis". @zerosum0x0. 21 April 2017. Archived from the original on 12
WannaCry_ransomware_attack
Computer exploit using just-in-time compilation
2010.; "Slides" (PDF). Alexey Sintsov (5 March 2010). "Writing JIT-Spray Shellcode For Fun And Profit". Packet Storm Security. Retrieved 30 January 2012
JIT_spraying
Cryptocurrency mining malware
EternalSynergy exploit with built-in shellcode for Windows 7 A1.py – EternalBlue exploit for Windows 7, receives shellcode as an argument A2.py – EternalBlue
Zealot_Campaign
Code obfuscation framework
invocations to obfuscate malicious shellcode loading to avoid detection. "Abusing Microsoft Warbird for Shellcode Execution". Cirosec. 7 November 2024
Microsoft_Warbird
Technique in computer security
the string. The heap spraying code makes copies of the long string with shellcode and stores these in an array, up to the point where enough memory has
Heap_spraying
2008 computer worm
execute shellcode on the target computer. On the source computer, the virus runs an HTTP server on a port between 1024 and 10000; the target shellcode connects
Conficker
Sequential access – Serverless computing – SETL – Shareware – Shell script – Shellcode – SIMD – Simula – Sircam – Slide rule – SLIP – SLR parser – Smalltalk
Index_of_computing_articles
Backdoor implant tool
2019. Retrieved 2019-05-07. "DoublePulsar Initial SMB Backdoor Ring 0 Shellcode Analysis". zerosum0x0.blogspot.com. 21 April 2017. Retrieved 2017-05-16
DoublePulsar
Project aiming to reduce the risk of attacks on Linux systems
patch additionally increases the difficulty of inserting and executing shellcode, rendering most exploits ineffective. No application recompilation is
Exec_Shield
Arbitrary code execution exploit
prevention are employed, it won't be possible for the attacker to just place a shellcode on the stack and cause the machine to execute it by overwriting the return
Sigreturn-oriented programming
Sigreturn-oriented_programming
Metasploit framework used to convert malicious shellcode into difficult-to-detect polymorphic shellcode using XOR additive feedback. Attackers can evade
Intrusion detection system evasion techniques
Intrusion_detection_system_evasion_techniques
Concept in computer security
JIT Spraying" (PDF). Alexey Sintsov (March 5, 2010). "Writing JIT-Spray Shellcode for fun and profit" (PDF). Archived from the original (PDF) on 2016-03-04
Executable-space_protection
Source code that alters its instructions to the hardware while executing
reveal their presence, such as computer viruses and some shellcodes. Viruses and shellcodes that use self-modifying code mostly do this in combination
Self-modifying_code
Type of code used by computer viruses
2002. Archived from the original on June 2, 2007. "Architecture Spanning Shellcode". Phrack Magazine. Vol. 11, no. 57. August 11, 2001. Archived from the
Metamorphic_code
Authorized cyberattack for testing purposes
screenshots, installing adware, stealing credentials, creating backdoors using shellcode, or altering data. Some companies maintain large databases of known exploits
Penetration_test
UEFI malware
order to gain firmware-level persistence. Using LogoFAIL, BootKitty embed shellcode into two BMP image files during boot to bypass Secure Boot protections
BootKitty
Programming technique for hacking
into the memory of the higher-privileged application (say by pasting shellcode to an edit box) at a known location, they could then send WM_TIMER messages
Shatter_attack
Software anomaly
breaches. Buffer overflow Heap spraying Stack buffer overflow Exploit Shellcode "Microsoft Security Bulletin MS04-028, Buffer Overrun in JPEG Processing
Heap_overflow
Computer operating system
privileges of the interrupted image. The buffer overflow bug allowed shellcode to be executed with the privileges of an interrupted image. This could
OpenVMS
Type of malicious software
which masked configuration data in images; Gatak/Stegoloader, which hid shellcode in PNG files; TeslaCrypt, which embedded C&C commands in JPEGs; and Cerber
Stegomalware
Software security techniques
especially are a problem here, as they can be overflowed into and can execute shellcode when called. Bounds checking is a compiler-based technique that adds run-time
Buffer_overflow_protection
2016 studio album by the Algorithm
5:07 3. "Pointers" 4:39 4. "Brute Force" 5:21 5. "Userspace" 6:15 6. "Shellcode" 4:24 7. "Hex" 5:03 8. "Deadlock" (featuring Igorrr) 2:33 9. "Rootkit"
Brute_Force_(album)
abstraction often is synonymous with interface. For example, in examining shellcode and the interface between higher and lower level languages, the level
Abstraction principle (computer programming)
Abstraction_principle_(computer_programming)
dynamic analysis capabilities (using Abstract Syntax Tree and Libemu shellcode analyser). Thug is written in Python under GNU General Public License
Client_honeypot
Hacker group
in 2004 the website went down. In 2000, developed hellkit, the first shellcode generator.[citation needed] In 2000, wrote TesoGCC, the first format string
TESO_(Austrian_hacker_group)
Free and open-source calculator software
of the DOSBox process is non-executable, we cannot directly inject our shellcode on it." "The Gnome calculator was used to perform these calculations and
Qalculate!
Chinese censorship software
exploit that takes advantage of the same defect to practically deploy shellcode was published on the website milw0rm.com. The author of the exploit claimed
Green_Dam_Youth_Escort
American computer scientist
"Killing the Myth of Cisco IOS Diversity: Recent Advances in Reliable Shellcode Design". doi:10.7916/D8TB1H7N. {{cite journal}}: Cite journal requires
Ang_Cui
Conference held in Wellington, New Zealand
Kindle, Microsoft Office and Java serialization. 2011 – "It Goes b00m" / "Shellcode, treason and plot" For its fifth year, Kiwicon took place on 5 and 6 November
Kawaiicon
Type of software vulnerability
function or the return address on the stack with a pointer to some malicious shellcode. The padding parameters to format specifiers are used to control the number
Uncontrolled_format_string
Malware that affects the Linux operating system
advertising revenue. NyaDrop – a small Linux backdoor compiled from a Linux shellcode to be used to infect Linux boxes with bigger size Linux malware. PNScan
Linux_malware
Free framework for reverse-engineering software
other security-oriented personnel. Radare2 can also assist in creating shellcodes with its 'ragg2' tool, similar to metasploit. Project Iaito has been developed
Radare2
Combined executable file for multiple processor types or operating systems
camouflaged as (sometimes even readable) text Multi-architecture shellcode, shellcode targeting multiple platforms (and sometimes even camouflaged as alphanumeric
Fat_binary
Cybercrime
Computer security Computer virus Crimeware Exploit kit IT risk Metasploit Shellcode w3af "Exploit-as-a-service: Cybercriminals exploring potential of leasing
Exploit_as_a_service
Record label
No Format Year War Dub / Alien Tongue Pinch & P Dutty TEC001 12" 2005 Shellcode Moving Ninja TEC002 12" 2005 28g / Fearless Loefah & Skream TEC003 12"
Tectonic_(record_label)
Network vulnerability scanner
development of exploits where a shell can be established. A shell, or shellcode, is where all exploits included offer a command shell/direct connection
SAINT_(software)
Automatic Translation Evaluation Model
Natella, Roberto; Cukic, Bojan; Shaikh, Samira (2021). "Shellcode_IA32: A Dataset for Automatic Shellcode Generation". Proceedings of the 1st Workshop on Natural
LEPOR
SHELLCODE
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Surname or Lastname
English
English : topographic name for someone who lived by a willow tree, Middle English wythe (Old English wiððe).American bearers of the surname Wythe trace their ancestry to Thomas Wythe, who emigrated from England to VA in 1680. One of his descendants was the statesman and jurist George Wythe (1726–1806), mentor of Thomas Jefferson and one of the signers of the Declaration of Independence.
Surname or Lastname
English
English : occupational name for a brothelkeeper; originally a feminine form of Hollier.
Boy/Male
Indian, Punjabi, Sikh
Meditating in Truth; Truthful; God
Girl/Female
Hindu, Indian, Malayalam
Part of Goddess Laxmi
Boy/Male
Gujarati, Hindu, Indian, Malayalam, Marathi, Sindhi, Telugu
One who Stays in Heaven
Surname or Lastname
Americanized form of German Illig. One family bearing this name and known to have made this change in form came to OH from Alsace in the 19th century.English
Americanized form of German Illig. One family bearing this name and known to have made this change in form came to OH from Alsace in the 19th century.English : habitational name from either of two places called Elwick, in North Yorkshire and Northumberland, named with the Old English personal name Ella (or in the case of the first, possibly an unattested Ægla) + Old English wīc ‘outlying (dairy) farm’.
Boy/Male
Hindu
One of the kauravas
Surname or Lastname
English
English : habitational name from any of various places named Westbrook, for example in Berkshire, Kent, and the Isle of Wight, from Old English west ‘west’ + brÅc ‘brook’.Altered spelling of Dutch Westbroek, a habitational name from a place so named near Utrecht.
Boy/Male
Arabic, Muslim
Crown; Garland
Girl/Female
Indian
A Part of Gita
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