Obfuscation refers to hiding the intended meaning of communication.

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2
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2answers
105 views

What risks do I have now that I accidentaly opened a suspicious URL send to me by Skype?

The following URL was sent to me by a trusted Skype contact (from my university): WARNING - DO NOT CLICK IF YOU DON'T KNOW WHAT YOU'RE DOING http://bit.ly/28PPw3V#dahubas=my_skype_id I clicked on ...
88
votes
4answers
35k views

I was tricked on Facebook into downloading an obfuscated script

I got a notification on Facebook: "(a friend of mine) mentioned you in a comment". However, when I clicked it, Firefox tried to download the following file: comment_24016875.jse This is an ...
1
vote
0answers
58 views

Obfuscated PHP code found in WordPress core files and plugins

I am running a Wordpress website and I've recently found this php code injected in many of my php files. https://www.unphp.net/decode/fb4715ee71b28135f6807389df42611c/ I tried adding some print_r(...
2
votes
1answer
62 views

Is it possible to encode a Flash exploit with msfencode?

I am using a Flash exploit from metasploit, exploit/multi/browser/adobe_flash_hacking_team_uaf. The Cisco FirePOWER services notice these signatures and drop the packets. I was wondering about the ...
0
votes
1answer
51 views

Encrypt links in android app

I want to hide the links to my server address in my Android app. When my app is decompiled, the links are clearly showing. Even with the proguard enabled I am not able to hide links. How can I ...
1
vote
1answer
73 views

Is using dynamic obfuscation and peppers for password hashing a good idea?

I've read now the whole day about password hashing and secure authentication and though I read very often that mostly every own algorithm makes the proven hashing methods just less secure, I just got ...
1
vote
2answers
90 views

Login attempt password logging and obfuscation

I have a third party app that records the password from every login attempt (regardless of success or failure). Is this a standard operation and does it really serve any meaningful security purpose? ...
-2
votes
1answer
100 views

An alternative to obfuscation

Recently I devised a way to avoid obfuscation of a jar file, here is how it works: Renamed the abc.jar file to xyz.so Placed it in system folder something like /lib/bdevid/ where other .so files ...
118
votes
2answers
9k views

I found unknown PHP code on my server. How do I de-obfuscate the code?

We've been getting a lot of noise regarding hacked PHP files here, and it's taking a lot of time to answer these questions. In many cases, they are off-topic. We've had a discussion about this on ...
0
votes
1answer
73 views

What's Google Inbox request/response obfuscation skill? [closed]

I Inspected Google Inbox network resources via Chrome Developer Tool. I saw some request/response payload and result. This object type is not readable for human. I've never seen this kind of ...
2
votes
1answer
196 views

What kind of encryption or obfuscation is this? [closed]

I found this script on a web page who attempted to change my router's DNS configuration. But I can't understant what kind of encryption or obfuscation is used. Here, a sample of the code on the page:...
1
vote
1answer
66 views

Hide data from user, but process it in application

Is there a way to hide the data that's received somehow from the user? In particular, I have some data that gets send from a webserver to an application. I want the application to process the data, ...
-4
votes
1answer
36 views

Tendency towards security-is-binary in cryptography [closed]

In the real (physical) world, we seem to feel secure with just enough security, e.g.: Our door lock isn't the most secure. Anyone can lock-pick / break with force. Our car isn't the most robust. ...
45
votes
4answers
5k views

Is this a self rolled hashing/obfuscation method? Can you recognize the pattern?

A system we're introducing into the organization is not using any traditional hashing function that I can find. I've been assigned to "approve" it by black-box testing. I suspect passwords are simply ...
1
vote
2answers
119 views

Reverse Engineering - Countermeasures [closed]

I'm new to information security but I'm learning about reverse engineering. I read here about countermeasures to make reverse engineering hard. Does code signing protect the code from reverse ...
3
votes
3answers
160 views

What kind of email attack is this?

I received the following invoice_scan_nHl8GB.js as an email attachment from a spoofed email address/infected PC zipped in a E.zip. Strangely the sender's address is not properly spoofed, probably ...
3
votes
1answer
73 views

A code protector claims that it “ensures it is physically impossible to run code without a serial number” is this a scam?

VMProtect Software (found at http://vmpsoft.com/) claims that it: "allows the generation and verification of serial numbers. Both manual and automatic generation are supported. Serial numbers can be ...
6
votes
1answer
298 views

Should veil framework produce packed and obfuscated binaries which bypass virustotal?

I have been working with the veil framework to test an internal IDS system I have in place. I have used a public malware sample which produces an 8/53 hit score on Virustotal and run it through the ...
-2
votes
1answer
78 views

Is it possible to build unbreakable Protocol Obfuscation? [closed]

Using Protocol Obfuscation some internet protocols have tried to evade traffic shaping. BitTorrent supports Protocol Obfuscation for instance. Is it possible to build unbreakable Protocol Obfuscation?...
8
votes
1answer
156 views

IBAN with too few blanked digits?

It is customary for websites, messages, or other documents to sometimes display data (credit card numbers, phone numbers, ...) with some numbers blanked (e.g., replaced with asterisks) so that the ...
16
votes
4answers
7k views

Processor microcode manipulation to change opcodes?

I had recently thought of an extreme way of implementing security by obscurity and wanted to ask you guys if it's possible. Would a person with no access to special processor documentation be able ...
75
votes
14answers
8k views

How to store passwords written on a physical notebook?

Answers to the question "How safe are password managers like LastPass?" suggest that storing personal passwords on a physical notebook might be a reasonable option: I know someone who won't use ...
5
votes
1answer
104 views

Using a single number instead of an IP address or a DNS name, which are concrete uses? [closed]

My question: I have read that using the single number equivalent (called the "binary equivalent" by the author) of the IP address instead of the actual IP address or the domain name can be used "to ...
1
vote
2answers
169 views

How can I hide my AWS S3 access key and secret in C++? [duplicate]

I'm using AWS S3 in my C++ app to upload and download files. I've included the access key and secret in my code but I'm worried someone could read them from the binary. Is there any standard technique ...
25
votes
11answers
4k views

Is obfuscation worth it [closed]

There are many tools to obfuscate .NET applications. The free ones do some basic obfuscation while commercial ones seem to promise more. My question is: Is it worth to use the commercial obfuscation ...
1
vote
1answer
258 views

Level of security provided with (.NET) obfuscator tools

There are numerous tools that offer to obfuscate .NET code. (Dotfuscator etc.) Question is simple, those who are experienced with such tools, what it the level of protection such tools offer? Against ...
67
votes
4answers
7k views

Is using 'dot' and 'at' in email addresses in public text still useful?

When entering your email address publicly, a practice is to replace . with text dot and @ with text at. I assume that the reasoning is that this way automatic email-collector robots won't match your ...
0
votes
1answer
40 views

Entropy on payload

How can I guess if a payload is obfuscated or encrypted? in other words can I apply Shannon Entropy algorithm to a binary payload? any advice will be appreciated, thanks in advance
0
votes
1answer
65 views

Does a 'mailto:' hyperlink spoil any preceding email obfuscation efforts in PDF?

Assume there is a PDF file which contains the example@example.com email address as an image (the classic obfuscation method). However, what if this image is made clickable with a hyperlink which ...
1
vote
1answer
109 views

Common characters/statements in obfuscated JavaScript [closed]

I'm trying to compile a list of common characters and statements in obfuscated JavaScript. I'm using http://aw-snap.info/articles/js-examples.php for obfuscated JS examples, but I cannot distinguish ...
7
votes
1answer
408 views

Javascript phishing attack sucker: Do I need to be worried? [closed]

So, I'm an idiot. I opened a javascript phishing attack file. I would really, really appreciate some help with decoding the Javascript to figure out whether I'm in trouble, and what sort. I'm on OS X ...
0
votes
2answers
161 views

Hiding (Obfuscating) Java script [closed]

So i heard that obfuscating java script is useless and waste of time because anyone with a little of skill can decode your code. So i want to test that. This code will display a alert box saying hey ...
3
votes
4answers
325 views

Securing Data at Rest in Android

Here's a situation. I am the author of an app that allows my customers to stream videos on their local android device. I also allow them to download the video and store it locally on their android ...
2
votes
1answer
149 views

Preventing reverse engineering through obfuscation and LLVM [closed]

I just came across this concept of "obfuscation" and randomizing the binary so that attacker can't use it to reverse engineer a particular piece of software. Can anyone point me to resources which ...
5
votes
4answers
7k views

What does this malicious PHP script do? [closed]

Somebody hacked my site and uploaded this script (template46.php) to my webroot and its content is: <?php $vIIJ30Y = Array('1'=>'F', '0'=>'j', '3'=>'s', '2'=>'l', '5'=>'M', '4'=>'...
3
votes
1answer
1k views

What methods are websites using to prevent direct access to media?

I really hope this question isn't off-topic... Background The question pertains to media security (video, audio, etc.), where the media in question is digitally protected (legally, DMCA-style) or ...
25
votes
5answers
5k views

Never spell a word the same way twice?

A long time ago I was reading about Renaissance-era ciphers and I remembered this quote: David Kahn, author of The Codebreakers, quotes Giovanni Battista Porta who published, in 1563, a famous ...
1
vote
4answers
237 views

Data anonymization/ encryption requirement

I did check out the previous postings and didnt find what I was looking for- apologies if this is a repetition. I am working on an analytics engagement for a customer and he needs to share access to ...
3
votes
2answers
182 views

Security through obscurity - “https requests” are safe?

In an iPhone app that utilizes plain text (unencrypted) XML as the contents of its http POST requests over https to the app server; how would someone be able to discover the "format" of the plain text ...
8
votes
5answers
9k views

Obfuscating JavaScript code

Some Flash developers are afraid of JavaScript. Their point of view: Stealing JS source code is effortless, one would just 'view source' and copy it. Yes, you can decompile Flash bytecode, however it ...
-4
votes
1answer
150 views

Email obfuscation/munging recent research [closed]

Does anyone know of any recent (past year or two) research into email obfuscation/munging? All I can find are tests done five to ten years ago. I'm trying to decide whether it's something still ...
21
votes
2answers
5k views

Describe an example of indistinguishability obfuscation or functional encryption

As described in Perfecting the Art of Sensible Nonsense, a major breakthrough in cryptography research was published in the summer of 2013: Candidate Indistinguishability Obfuscation and Functional ...
4
votes
2answers
150 views

Does HTTP Digest Auth provide any increased security in this scenario?

Say I have a website running a popular CMS like Wordpress only over SSL through HTTP Strict Transport Security. Prior, the backend administrator login page could be accessed by anybody simply by ...
2
votes
1answer
511 views

GnuPG / OpenPGP: How to eliminate redundancy in PGP private key?

I examined a few randomly generated private keys generated by Gnu PG, and found a lot of redundancy. It is enclosed by -----BEGIN PGP PRIVATE KEY BLOCK----- and -----END PGP PRIVATE KEY BLOCK----- ...
3
votes
1answer
109 views

Obfuscate IDS rules

Are there known techniques to obfuscate IDS rules, so they can't be easily used by attackers to reverse-engineer the vulnerability that they detect? Let me provide some context. Sometimes IDS ...
1
vote
1answer
50 views

Location Obfusication and Email/remote login

Would it be possible for a user of a 3rd party VNC software package and email client to obfusicate/spoof their location, so that an employer would be unable to determine the location from which the ...
4
votes
2answers
1k views

How to Conceal/Detect PGP Symmetric Algorithm Used

When Symmetrically encrypting a file, (not signing, not an asymmetric encryption question), is it possible to conceal the encryption algorithm used, or is it already concealed, but just showing on ...
1
vote
1answer
259 views

Obfuscation alternatives

So I've made a tool for web developers and now I want to sell it, but I don't want all web developers to see my code (PHP). I do know there are PHP Obfuscators, but I don't want to use them, as they ...
26
votes
2answers
3k views

Break the popularity contest crypto

There is a very interesting puzzle on the Programming Puzzles and Code Golf site to Rearrange pixels in an image so it can't be recognized and then get it back. I understand that this is not ...
1
vote
1answer
525 views

Obfuscation and Mobile App

Recently, I stumbled with this topic in my mind for few days. I understand that obfuscation is not the best protection against reverse engineering. I wonder if there is another method that make it ...