In theory, the injected malware uses the knowledge it has picked up from the system’s vulnerabilities to run its code.
#Obfuscated code examples software#
Program bugs caused by the developers at the time of development are unavoidable and lead to software vulnerabilities. Thus, if an attacker manages to attack one copy of the software, the other copies are safe. Diversification Generates and Distributes Unique Replicas of a Program The attacker, by designing an attack model, can only undertake one replica, and the other replicas are safe.įigure 14.4. Fig. 14.4 shows the distribution of the uniquely diversified replicas of Program P among its users. For this reason, diversification is considered to be a promising technique to defend against massive-scale attacks and protect the largely distributed systems. That is to say, a single-attack model does not work on several systems, and the attacker needs to design system-specific attack models. Assuming that the attacker discovers the diversification secret of one instance of the program, it can possibly attack against that specific version, whereas the others would still be safe. The way that a program is diversified is unique, and it is kept secret. Diversification, by introducing multiculturalism to the software design, aims at impeding the risk of massive-scale attacks. An intruder, by exploiting these vulnerabilities, can simply undertake a vast number of systems.
Their identical design makes them suffer from the same types of vulnerabilities, and they are prone to the same security attacks. Using O111 using O111.l1000 using System using System.Collections using System.l1001 using System.l1010 using System.Currently, the software and operating systems are developed and distributed in a monocultural manner. Use the horizontal scroll bar on your browser The "line" below is the obfuscated C# code.īecause all unnecessary line breaks have been removed, the obfuscated Public static string GetCSType(string GLType)Ĭ("warning: unknown type \""+GLType+"\" use as is.") Throw new ArgumentException("unknown base type") } Return typeName+StarString(codeFriendly ? Public string ToString(int level, bool isReturn, bool codeFriendly) * codeFriendly to generate a compilable name for CFunction * isReturn tell wether or not it is a return argument as ** return the C# representation of a type for a given level. * Note a return type has a maximum of 3 level, anyway. * roughly equal to the number of polymorphic type ** return the generation specific level of this type. * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * SERVICES LOSS OF USE, DATA, OR PROFITS OR BUSINESS INTERRUPTION) HOWEVER * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * without specific prior written permission. * may be used to endorse or promote products derived from this software Neither the name of the nor the names of its contributors * documentation and/or other materials provided with the distribution. * notice, this list of conditions and the following disclaimer in the Redistributions in binary form must reproduce the above copyright * this list of conditions and the following disclaimer. Redistributions of source code must retain the above copyright notice,
* modification, are permitted provided that the following conditions are met: * Redistribution and use in source and binary forms, with or without * Copyright (c) 2001, Lloyd Dupont All rights reserved. (This is the same formatted code shown on the C# Formatter example page) Virtually any source language as a part of Semantic Designs can construct custom obfuscators for
Code Search (Find, Follow), Analysis (Metrics, Static, Dynamic, Bugs) and Change (Modernization, Migration, Generation, Optimization, Rearchitecting)
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