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19

UPDATED I would check the following: Logs. If you have root access you should check things like history which will give you command history and log files in /var/logs. Baseline. If you have a baseline like file hashes to work with for application and system files this will help a lot. You can also use backups to compare a previous state. If using a backup ...


13

If you can send packets to the target machine, use nmap -O, which provides OS fingerprinting. If you can eavesdrop/intercept network traffic with the target machine, use pof, a tool for passive OS fingerprinting. You didn't provide much information about what are your constraints or why the standard tools (like nmap or pof) didn't work for you. Therefore, ...


12

The SIM card must be plugged into a device for it to be functional in any way. It does not contain a power supply or an antenna. As such, it'd be impossible to track a SIM card on its own. However, once you plug it into a phone and power it on, the IMEI number of the phone and the SIM's serial number will be transmitted to the nearest cell tower(s).


11

In some circles, "crypter" and "packer" are synonymous to mean binaries or programs which are self-checking and/or self-modifying. Crypters may, more specifically, mean self-modification that includes encryption and/or code scrambling (see more below). I suggest that you read Chris Eagle's The IDA Pro Book for an introductory understanding of packers and ...


10

I believe the term you're looking for is "honeypot".


9

You could give some of the encoders in the metasploit framework a look. In particular the Polymorphic XOR Additive Feedback Encoder ( Shikata Ga Nai ) might be worth a look, as it is dicussed in the Metasploit Unleashed documentation in regards to bypassing antivirus detection.


8

Your idea of fingerprinting is very similar to wireless signals intelligence in WWII. Both sides used to have whole departments whose role was to learn the code style, or "fist" of the opposing side's wireless operators. By tracking these profiles and using radio direction finding they gained a surprising amount of information about troop and vessel ...


8

Those DDOS attacks were performed using a botnet. A botnet is a network of consumer PCs infected with malware. Such botnets are routinely used for a lot of activities, most of them illegal or at least ethically questionable. For that reason the people who control a botnet do their best not to get found. They usually control their botnets using obscure ...


7

The best thing you can do is have a known clean copy of your site that you can compare the server's files against. Most hacked webservers that serve virus infections come from changing the content of scripting files that server is offering to clients. Look for files with different checksums or new files. There are also cases with forums type sites where the ...


7

It sounds like you want a tamper-evident security seal. There are many commercial offerings. You can look at tamper-evident tape, cable seals, padlock seals, and many other options. I recommend that you read background information from Argonne National Laboratory, which has done some of the best research on the security of these seals. Let me warn you of ...


7

Why do you assume the user would notice? Starting a program takes a bit of CPU, a bit of RAM, causes a few disk accesses, but that's pretty low-key. Even geeks who have a CPU meter or other common system monitor in their task bar will probably assume it's just some Javascript on a timer in an opened web page, or a garbage collector, or a scheduled task in ...


6

As @Dgarcia said, a quick method is to use something like Tripwire or other tool which monitors files or the hashes of files to check for changes. This works to identify servers compromised by many types of attack. It may not work for ones where a rootkit has been installed that counteracts this process. It will not work for servers which have fallen prey ...


6

This is a tough question to answer because it is so broad. There are two categories of "hacks" in my book - minor and serious. I would class a rootkit in the serious category and your average script injection attack as minor. While with minor attacks you can clean them up, you can't be 100% certain you've removed them or closed all access to repeat the ...


6

you can check the following links NMap OS Detection and Paper About Nmap Detection you will find on them different methods used for OS detection By Fyodor the Creator of Nmap and if you want to dig dive you can purchase his book from amazon. From NMap OS Detection: ...dozens of tests such as TCP ISN sampling, TCP options support and ordering, IP ID ...


6

Efficient malware will manipulate the kernel internal structure so as not to appear at all in the list of process (then again, a hide-and-seek game between malware and malware detectors; see for instance this page for some information). Thus, you will not see anything in the task manager. Even if the keylogger does appear as a task in the task manager, key ...


6

There are many known ways to identify packers. The 'most common' packer UPX and its variations are usually flagged as 'suspicious' by Anti-virus engines due to a signature detection in the EXe. There's a couple of handy tools called: RDG Packer Detector which detects specific packers based on signature checking (presumably the same way AV does it PEiD ...


6

I can think of some ways: Malware connect to C&C server. if you monitor your traffic (as sensitive system should be monitored) - than you find unusual traffic that can be sign (and should be investigated) If the malware uses USB flash drives to spread itself, and you have different computer platforms in your environment (e,g: windows, mac, linux and ...


6

Knowing of an attacker and not disconnecting them will allow you gather evidence on the attacker such as determining the motive for the attack, determining the tools the attacker is using, determining the mode of operation of the attacker and maybe... just maybe, but not likely, being able to trace the connection back to the attacker. You could then try to ...


5

You would be surprised how common it is to detect an attack, send an attack report to the company whose IP address the attack comes from, and get a response back reporting that the compromised machine has been quarantined thanks to your report. Part of being a good network citizen is helping other administrators to detect and respond to compromised systems ...


5

Go throughout this article about remote OS foot printing. http://nmap.org/book/osdetect.html


5

Disclaimer. IBM Site Protector is proprietary, so I cannot answer specific questions about it. But I'll share my impression of network-based IDS/IPS systems, in general. Effectiveness at detecting certain attacks. You asked about how effective IDSs are at detecting certain specific kinds of attacks: Port scans. I'd expect IDS systems to be pretty ...


5

By definition, that is a NIDS. That may or may not be enough for your project. What is possibly more important for a real world NIDS is how it is updated, how is is tuned, how it is managed, how it reports on exceptions or alerts etc. Any of the following would be useful in a NIDS. Updates - using Snort signatures is useful. Is there any ...


5

You could setup a honeypot, and add your additional logging systems. This will produce results, although probably not the results you are looking for. In the real world, most compromises are with bots, so keystrokes don't apply.


5

In addition to the verification methods you've provided, Web services keep track of users using the following methods. Usually a failure in any of these services can cause a site to block access or lock an account. Cookies These are text files that a website will send to your browser when you access a site or service. These files contain information ...


4

Reliably detecting Cross-Site Scripting is a relatively complex task, just inserting a string with no control characters and looking for it in the response, is a very bad idea as you'll be swamped by false positives. What most scanners to is take a series of standard vectors (e.g. ">< script >alert(1)< /script ><") and then look at the response ...


4

Terry Chia, we meet again xD. Simple put, although technologies to track hackers are present, there are a number of constraints on governments that prevent them from doing so. That said, a private individual working as a blackhat will probably have better chances to track a particular hacker. To begin with, the main reason law enforcement agencies arrest ...


4

IDSs will probably be about as effective at detecting targeted attacks as non-targeted attacks. I wonder if there might be some misunderstanding about what a "targeted attack" is. The difference between a targeted attack and a non-targeted attack is in whether the attacker tries hacking everyone or hacking just you. Targeted vs non-targeted is orthogonal ...


4

What the article says is that the virus contains a lot of specific code aimed at defeating anti-virus -- both the AV software itself, and the analysis techniques used by AV developers to figure out what the virus does. In the specific paragraph you quote, that's the latter which is discussed: the virus code alters its behaviour when it detects that it is ...



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