Specific to logging of alerts, activities and actions. This also covers user's history managed by software such as browsers.

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5
votes
2answers
151 views

Are we obliged to provide a complete log should auditors ask for it?

We have a system that outputs and rotate logs on a daily basis. If an auditor requests us to provide logs of a particular date for a particular task, are we obliged to provide a complete full day ...
5
votes
1answer
5k views

What's the risk of changing permissions of the Security Eventlog registry key to IT operations?

Background Many developers are unnecessarily lowering the security of the event log, or requiring applications to run in Administrator mode just so they can use the event log with this C# or VB code: ...
5
votes
1answer
145 views

Chaining VPNs to increase privacy?

I was wondering if it's possible to chain many VPNs, and if it is, if it increases privacy at all? My thinking was that each country has data retention laws. If all VPN keep logs (even if most lie ...
5
votes
2answers
98 views

Could an attacker prevent IIS from logging requests

I've had an attacker try to gain access to one of my websites through a form using what looks like a blind SQL inject. It is a huge form, and every possible permutation of values has been tried - in ...
4
votes
2answers
357 views

How can I find out who owns a block of IPs?

I'm currently going through the logs on my apache install for potential intrustions, and I'm finding a lot of hits for SQL injections and exploit testing, from 173.212.195.* . I'm now trying to find ...
4
votes
3answers
914 views

“Authorized” Man in the middle

I am implementing a TLS connection with a basic server and client. It’s a one way connection: the server has a certificate chained to the CA, and the client has a collection of trusted root ...
4
votes
2answers
654 views

SIEM log pre-filtering question

As everyone knows each company wants to save as much money as possible. I have been tasked with pre-filtering logs on less important status/health messages before they get to the SIEM. Does anyone ...
4
votes
2answers
2k views

SIEM and Windows Event Logs

When considering what Windows event logs to incorporate into a SIEM solution, should I be looking at just the Security event logs, or all categories of event log? How useful are the other categories ...
4
votes
2answers
194 views

What is the benefit of combining different web log files with different formats?

What is the benefit of combining different web log files with different formats in terms of web application security? In other words, how does combining iis log file with apache log file help in ...
4
votes
2answers
60 views

Is it safe to expose a logging socket endpoint in a chrooted environment?

I'm trying to set up a file transfer server, which needs to be secured and logged. FTP was suggested, but that feels outdated so I automatically translated that to SFTP (OpenSSH) in my head. Using ...
4
votes
3answers
874 views

Log Attacks in Different Files using Snort

How can I log attacks separately using snort. I basically want to log attacks invoked from different files separately. Like if I have 2 files, ddos.rules and log.rules, then I want logs generated from ...
4
votes
1answer
141 views

How to see what happens when a usb is inserted

After reading through this question about the dangers of untrusted usb drives, I was wondering if there was a way to actually see what happens when a usb drive is installed. Is it possible to say run ...
4
votes
2answers
122 views

Log of all processes running on a computer

I'm new to the security domain and I want to ask - Does every program leave an 'imprint' in a log of some kind, in a laptop or a PC - of whatever process it ran. If yes, can they be analysed?
4
votes
2answers
279 views

What does a MCSE need to learn to be proficient regarding *nix security?

I have a top notch Windows MCSE/MCSD (developer) who wants to broaden his skills with Linux security... but needs to update his skills from the Ultrix / Yellowpages days of 40 years ago. What ...
4
votes
1answer
1k views

Can auditd track events that occured over NFS

I have multiple servers mounting a NFS shared called /opt/WHATEVER from Server X. Server X has auditd enables with rule: sudo /sbin/auditctl -w /opt/WHATEVER -p rwxa When events occur on Server X ...
4
votes
0answers
52 views

Is there a place where I can upload my honeypot logs to?

Maybe a weird question but I've had a public facing HTTP/SSH honeypot for a little bit over a year now and was wondering if there was any place that I can upload my logs to? There are a bunch of ...
4
votes
1answer
75 views

Will my method for managing account data work?

I'm looking at whats nessecary to create a small accounts server for a video game I'm programming in my spare time. User privacy is a very important topic for me, and I don't want to keep anything ...
3
votes
2answers
1k views

How to make database of IP addresses anonymous?

I have to perform ip address connection stats anonymously because the data posses security risk, so how do I do it? Is it just like this, that the ip numbers and networks are replaced by random ...
3
votes
5answers
3k views

Is it wrong to collect and store IP addresses?

I am developing a PHP analytics program. I am using IP addresses to get its corresponding country. I was wondering if its OK to store both the IP address and Country or if its better if I just store ...
3
votes
3answers
2k views

Strange GET requests to my Apache Web Server?

A few days ago, my Apache web server was hit with get requests, many of which had strange escape sequences. Can someone read the following sample log entries and explain what the person tried to do, ...
3
votes
1answer
79 views

Logging sensitive data

My bank's android app is logging session ids, account numbers, money transfers and current balance of my account. Is this normal? Do all banks do that? Can a malicious app read my logs and get my ...
3
votes
2answers
358 views

Is my data secure in locked screen if I use bitlocker

My SSD is currently encrypted by bitlocker right now. So let say if I leave my laptop on locked state (Win+L). Is it possible for someone to get access to my data? Few thing I noted are: If someone ...
3
votes
2answers
225 views

Regular Expressions for common exploits

I patched for shellshock and was barraged a few days later. However, I would not have known any attempts were made at all if not for a regular expression I found on the internet. This has inspired me ...
3
votes
2answers
1k views

Security logs on Linux, Solaris and Windows

As the company's security department, our system administrators ask us what they need to log for SIEM (Security Incident and Event Management). We don't have any prepared documents and are seeking ...
3
votes
2answers
364 views

Setup and record outbound traffic from a botnet in a sandbox/secure environment

How do I record the outbound 'attack' traffic from a botnet on a Windows XP machine? The captured traffic will be in the Windows XP firewall log. I need to setup some kind of an experiment where I ...
3
votes
3answers
137 views

How to keep logs safe from attackers?

I have a Linux server equipped with some security apparatus to prevent unauthorized access. Hopefully, this will prevent intrusions, but the possibility always exists. Naturally I keep logs so that ...
3
votes
1answer
1k views

Auditing, accounting, logging, and accountability… What's the difference?

Let's first look at the book Microsoft Windows Security Essentials: ... the three As (AAA) of security: authentication, authorization, and accounting ... they combine to contribute to reliable ...
3
votes
2answers
625 views

Do LAMP log files sometimes contain sensitive information?

I will have a LAMP web server with CentOS and cPanel. With this setup, is it possible for any server log files, whether regular or error logs, to contain sensitive information in them, such as ...
3
votes
2answers
143 views

When would you support the storage of Security & Application event logs in the Cloud?

Under what conditions would you be comfortable storing server log data residing in a secure facility, off-premises? When would you consider a SaaS /hosted solution and what value add should that ...
3
votes
3answers
513 views

Is it advisable to fully record terminal interaction for incident response?

We are going to be using a jump box to serve as an SSH bridge to our production systems. Assuming that operators are actually logging in to a shell on the jump box and assuming that it is possible to ...
3
votes
2answers
4k views

How to satisfy requirement 10.6 of PCI DSS?

The company I'm working for is applying for PCI compliance and I'm in charge of writing most of the required procedures and policies. The problem is that I don't have any experience with IT security, ...
3
votes
3answers
1k views

failed login attempts analysis

Is there any open source project that logs all the failed login attempts over a period of time and gives me analysis of the same, the login failure is at windows or unix or mac user authentication ...
3
votes
2answers
612 views

How to design SIEM RFP, keeping in view large database requirements?

I need some help regarding the design of SIEM requirments. In regard to large databases, what general requirements do I need to provide in order to provide coverage related to DB security? Some of ...
3
votes
1answer
66 views

Linux log files to back up and review for security

Good morning/afternoon/evening everyone, I am looking into what files I should consistently back up externally from my machine to be able to monitor for any unusual activity. I would look at the files ...
3
votes
1answer
84 views

Unusual potential vulnerability scan results in Apache logs

Recently I've been seeing entries similar to the following in my Apache access logs. I've replaced the IP address and time with Xs: access_log:xx.xx.xx.xx - - [xx/xx/xx:xx:xx:xx -0100] "GET ...
3
votes
1answer
1k views

How can I find out if someone has been on my home wifi network?

I am aware of DCHP tables, and apps that can scan your network to see who is "currently" on your wifi network, but I am more interested in how to tell if someone has been on my wifi network at some ...
3
votes
1answer
113 views

Good practice for log signing

I can imagine that for sensitive systems logging to a central logging server it can be handy to be able to verify the integrity of the logs. Each line can either be signed or a shared secret may be ...
3
votes
1answer
248 views

What useful security reports can be extracted from a Windows-based machine and its' related logs?

What logs and event IDs should I be paying attention to when looking at a Windows-based machine (workstation, server, Domain Controller)? Assuming I can aggregate them into a report what ...
3
votes
1answer
152 views

Analyzing log files for forensics homework?

Suppose two users have done a murder at 6pm at Dunkin Donuts, I have got the hard disks on site, disk1 and disk2. How do I identify the time and order of each user's activities on the hard disks? ...
3
votes
2answers
562 views

PCI DSS - mask PAN and log individual access to PAN

How do you re-conciliate two PCI DSS requirements in applications: 3.3 Mask PAN when displayed (the first six and last four digits are the maximum number of digits to be displayed), such that only ...
3
votes
1answer
144 views

Freezing creates unusual pattern in kern.log

My server freezed a few days ago. After restarting I immediately checked the logs and the only trace I saw were some dots in the kern.log. To my surprise, a day or two later these dots disappeared ...
3
votes
3answers
531 views

Issues with format of Logs generated by Auditd

I have below snapshot of log generated by auditd when I tried to delete a user. It doesn't have hostname and addr in the logs: type=DEL_USER msg=audit(1404811391.243:4407153): user pid=5772 uid=0 ...
3
votes
0answers
57 views

Is an application backend expected to potentially log sensitive customer data when in debug mode?

As I am working on a website that asks customers to enter data such as their name, address, phone number, obviously customer data that needs to be protected. I do my best to not log such data ...
2
votes
3answers
406 views

Remote Connection Tampering

My small high street laptop repair/service/maintenance shop has been up and running for about 3 years. It's doing quite well so I'm looking to expand into other areas of the PC market. One area I ...
2
votes
5answers
124 views

Proving an action was done at an exact time - a posteriori

I was thinking about the way git allows to edit the timestamp on commits, and how you can rewrite (public) history that way. I then drifted from that to "can we prove someone did an action at time X ...
2
votes
2answers
140 views

Is logging a hashed password safe?

I'm creating a login module for Wildfly by extending org.jboss.security.auth.spi.DatabaseServerLoginModule and using log4j2 for debugging. I've gotten into the habit of using log4j2's Logger.entry() ...
2
votes
2answers
11k views

Kernel Intrusion on home broadband router - what does it mean?

My home broadband connection has been up and down all day, I took a look at the router logs and saw the following: Mar 27 12:22:30 kernel: Intrusion -> IN=atm1 OUT= ...
2
votes
3answers
133 views

Is it dangerous for apache error_log to be writable?

I was reading an article about log files and referring to apache error log it mentioned that the logfiles should not be writeable by other users. How can this be dangerous? Is there a certain type of ...
2
votes
2answers
2k views

Safe user/group for rsyslog to read application log?

I have an application which writes a logfile in /var/app/applog.log. This application has to be launched as root, but runs as app:app and can also be demoted to nobody:nobody What exactly is ...
2
votes
2answers
244 views

What may a Hungarian employer do with the employee monitoring logs?

Employers often monitor employee network access, even install keyloggers on their computers, etc. But the articles I found on the internet, is about the monitoring but not what they may do with the ...