https://bugzilla.redhat.com/show_bug.cgi?id=1347878
Bug ID: 1347878
Summary: Review Request: xorsearch - Search for a given string
in an XOR, ROL, ROT or SHIFT encoded binary file
Product: Fedora
Version: rawhide
Component: Package Review
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected]
Spec URL: https://rebus.fedorapeople.org/SPECS/xorsearch.spec
SRPM URL: https://rebus.fedorapeople.org/SRPMS/xorsearch-1.11.1-1.fc23.src.rpm
Description:
XORSearch is a program to search for a given string in an XOR, ROL, ROT or
SHIFT
encoded binary file. An XOR encoded binary file is a file where some (or all)
bytes have been XORed with a constant value (the key). A ROL (or ROR) encoded
file has its bytes rotated by a certain number of bits (the key). A ROT encoded
file has its alphabetic characters (A-Z and a-z) rotated by a certain number
of positions. A SHIFT encoded file has its bytes shifted left by a certain
number of bits (the key): all bits of the first byte shift left, the MSB
of the second byte becomes the LSB of the first byte, all bits of the second
byte shift left, … XOR and ROL/ROR encoding is used by malware programmers
to obfuscate strings like URLs.
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