Obfuscation | DataProtectionCenter.com

The Hexadecimal URL Obfuscation Resurgence

02

May

2013

For that past several days, Symantec has observed an increase in spam messages containing hexadecimal obfuscated URLs. Hexadecimal character codes are simply the hexadecimal number to letter representation for the ASCII character set. To a computer, hexadecimal is just one out of the many systems for address expressions on the Internet.The following samples are different […]

Category General Written by Symantec Security Response Blog 0 Comments

New Uyghur and Tibetan Themed Attacks Using PDF Exploits

14

Mar

2013

On Feb 12th 2013, FireEye announced the discovery of an Adobe Reader 0-day exploit which is used to drop a previously unknown, advanced piece of malware. We called this new malware “ItaDuke” because it reminded us of Duqu and because of the ancient Italian comments in the shellcode copied from Dante Alighieri’s “Divine Comedy”. Previously, […]

Category General Written by Securelist / Blog 0 Comments

Mobile Drive-By Malware example

11

Mar

2013

Several days ago we received a complaint about javascrpt.ru. After a bit of research, we found that it tries to mimic ajax.google.com and jquery, but the code is an obfuscated/packed redirector.After removing two layers of obfuscation, we found a list of conditions checking visitors’ user Agent. From these conditions. we got a clue and focused […]

Category General Written by Avast! blog 0 Comments

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The Hexadecimal URL Obfuscation Resurgence

New Uyghur and Tibetan Themed Attacks Using PDF Exploits

Mobile Drive-By Malware example

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