Questions tagged [logging]

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

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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, ...
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247 votes
18 answers
29k views

Passwords being sent in clear text due to users' mistake in typing it in the username field

Upon reviewing the Logs generated by different SIEMs (Splunk, HP Logger Trial and the AlienVault platform’s SIEM) I noticed that for some reason quite a few users tend to make the mistake of typing ...
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  • 4,247
7 votes
4 answers
30k views

What are the laws regarding ISP recording IP addresses? How would they know who had which?

Since most internet users have ISPs using dynamic IP addresses (e.g. someone gets a new external IP address every few days) are there any laws requiring the ISPs to keep logs associating an IP address ...
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  • 10k
1 vote
1 answer
567 views

Computers connecting to suspicious websites via squid proxy

I am running a squid proxy server on my network which my computers connect through to access the internet. I have noticed several odd entries in the squid access.log file around the same time everyday,...
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  • 155
33 votes
4 answers
13k views

Should I be worried if I accidentally entered my password in a username field?

Occasionally I will fail to hit Tab properly when entering a username/password combination. This results in me submitting username "myUsername$ecretPa$$word" along with a blank password. I always ...
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  • 1,434
10 votes
1 answer
5k views

Check logs for Heartbleed exploit use?

According to articles such as the following, it's apparently possible to check logs for heartbeat requests matching the payloads described in the Heartbleed exploit. Is this something that any server ...
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  • 203
26 votes
3 answers
10k views

Techniques for ensuring verifiability of event log files

Bit of newbie at the whole forensics stuff - but I'm trying to find out what I should have in place before an attack. While there is no end of material on the internet about forensics from seizure ...
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25 votes
2 answers
10k views

Which HTTP status codes are interesting from a security point of view?

I'm looking to extract interesting information from webserver logs and I wonder which HTTP status codes should I filter out? For example, 200 hits can be considered to be 'regular behavior' whereas ...
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  • 3,272
16 votes
5 answers
2k views

Is it legal to log passwords from failed logins?

Is it legal to store/log mistyped passwords? How many of you have seen this happen in a log file or DB?
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  • 163
3 votes
5 answers
515 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 ...
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  • 143
2 votes
4 answers
5k views

Is my browsing history on the server hidden when I use a VPN?

I am a client within a server in a school. My computer has a static IP address to enable me to connect to the internet. We have a server that records the browsing history of the computers that are ...
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14 votes
5 answers
10k views

Linux command logging?

Recently someone broke into one of our linux servers as a non root user. An excerpt from .bash_history: [...] perl perl set +o history set +o history set +o history passwd sdfsdf passwd exit I ...
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  • 243
12 votes
2 answers
2k views

logging requirements for PCI for web applications

Does PCI dictate how much should be logged at an application level or simply what shouldn't be logged? I'm struggling with too much logging right now and some people who think we should have it. From ...
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8 votes
2 answers
673 views

What features do you look for in an Enterprise Log Management solution?

This question is for IT Pros, and people who manage a company's infrastructure. Developers should see this related answer for tools geared for them. What are your requirements for such a Event Log ...
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6 votes
2 answers
20k views

What can my ISP see in their log files if I use Google DNS?

For example, if I use my ISP DNS and open this page they will see: https://security.stackexchange.com/questions/ask It would show up in their logs for sure. But if I use Google DNS, then what ...
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9 votes
4 answers
7k views

What do shellshock attacks look like in system logs? [closed]

I have some Linux servers, which from what I can tell are not vulnerable to the shellshock attack vector, but I am curious what the attack looks like in the logs. What does a successful attack look ...
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  • 301
22 votes
5 answers
13k views

Does Google collect and store data about activity done in Incognito mode?

Suppose that someone browses non-Youtube videos (like on Vimeo) in Google Chrome's Incognito mode. Does Google collect and store any data about this activity ("watched videos on Vimeo" ...
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  • 339
14 votes
4 answers
22k views

What logs to retain for PCI-DSS?

I am using Splunk to centrally collect all of my logs for PCI-DSS. I'm running into my licensed volume limit and I need to know exactly what needs to be retained for regulatory compliance. I am ...
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  • 3,762
2 votes
3 answers
17k views

How to trace malicious hackers?

What are some of the ways law enforcement agencies can trace a hacking attempt back to the hacker? IP and MAC addresses can be spoofed easily, hackers can easily hide their tracks using compromised ...
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8 votes
3 answers
2k views

How do I log all my internet-connections

How can I (maybe with a proxy, but I need names of programs!?) log all my interactions of programs with my Internet connection, so that I could see WHAT a program is sending and WHAT it is receiving. (...
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  • 365
6 votes
4 answers
684 views

Are there a standard method(s) for me to give someone else read-only access to my data?

Are there a standard method(s) for me to give someone else read-only access to my data? There are several situations where I may want to give a few people read-only access to some data, but I would ...
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  • 2,710
17 votes
2 answers
15k views

How secure is the Windows event log, and how is it secured?

I'm curious as to just how secure the Windows event log is, and exactly what security measures it uses. Does it include any defenses against tampering - for example, does it use digital signatures or ...
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  • 273
1 vote
1 answer
893 views

What browsing history exactly would police have under proposed UK law change? Plain english

It's very unclear what '12 months' browsing history being kept by network provider' actually means to an uninformed person. Thunderbird? VPN? Startpage searches? Bit-torrent downloads? Epic browser (...
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  • 11
0 votes
1 answer
4k views

Do ISP’s in America keep IP assignment logs forever? [closed]

I read that the majority of ISP’s keep theirs for at least 180 days. However, does anyone know how long charter spectrum keeps theirs? Do ISP’s retain their logs forever even if they are using a DHCP ...
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17 votes
5 answers
2k views

How do you handle log analysis?

How do you handle log analysis in your business? I want to establish a good way of finding exceptions and alerts in the server logs, either automatically or semi automatic (having to review ...
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  • 16.1k
21 votes
3 answers
23k views

What access does UK Police currently have to ISP logs, and what information can said logs provide?

I'm currently researching a novel that has a crime element that centres around Internet-exclusive relationships and I would appreciate any help you might be able to offer regarding how much access the ...
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9 votes
2 answers
5k views

How do I log everything a certain program is doing?

i have a program which is pretty simple. Its just a simple login form. Is there any possibility to log what this program is doing (maybe which file he is accessing and which website he is visiting (...
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  • 365
7 votes
2 answers
3k 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 codes,...
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6 votes
3 answers
4k views

What data should be logged?

Imagine having a web application. You then decide that you want to create your own logging system, for whatever reason. What data should be logged to put a very good logging system in place? I was ...
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  • 1,927
5 votes
2 answers
1k views

intrusion detection on own hotspot?

Is it possible to detect failed logins on the hotspots you create with your windows/linux laptops? So you can detect some dumb brute force/guessing attempts? For example, a log like this: TIME DATA - ...
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2 votes
2 answers
4k views

Log information for SIEM auditing in Linux

How can I know what all types of events generated by Linux. I can get this from the logs, but reading logs and noting ID's is very time consuming. All events might not be triggered. I need this ...
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  • 143
1 vote
2 answers
334 views

Tracing the attacker

I have seen from: http://www.scientificamerican.com/article/tracking-cyber-hackers/ "The source field can be changed [spoofed] by an attacker to make it seem like it's coming from someplace it's ...
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0 votes
2 answers
21k views

Will an ISP give out network/traffic info upon request?

Nothing big, just a fear of embarrassment. I use my mom's (she pays for it) internet service to connect online and stuff. The thing is, I am nervous that she may possibly ask the ISP for some traffic ...
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  • 21
10 votes
4 answers
2k views

What information should a error log record?

I want to populate my error log with useful information if and when errors occur. I'd like to use the log to be able to spot and fix bugs on my site, but also to potentially log hack attempts. For a ...
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9 votes
2 answers
8k views

url from another domain in my access log

Most of the time when I am looking for 404 errors in my access.log, I see attempts to access something like /phpMyAdmin/scripts/setup.php. This does not bother me so much, but few days ago I was ...
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8 votes
1 answer
1k views

How can I secure my log files?

I have a cool tool that displays my syslog and kernellog on my mac's desktop. This has me concerned about what is written in them - I'm staring to feel like they are creating a hole in my privacy. I ...
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  • 1,662
4 votes
3 answers
1k 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 ...
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  • 143
4 votes
2 answers
220 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 ...
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2 votes
1 answer
126 views

Is there any authentication system whose protocol always notifies the "target account" of impersonation?

There are many forms of impersonation: Sudo in *nix Application impersonation (send as in Exchange) Any privileged user (helpdesk) logging in as a user so to not disclose the password RunAs ...
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2 votes
2 answers
3k views

Logging and Metrics for DEP, EMET, and Related Mitigations

Is it possible to collect metrics or generate alerts when one of EMET's suite of mitigations prevents code execution? Ideally I'd want to be able to collect and analyze data to support statements like,...
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  • 31
8 votes
2 answers
6k views

Is it wise to log failed login attempts of non-existing accounts?

In terms of application layer authentication, it is common to track failed login attempts to existing user accounts. However, I have not seen anyone tracking failed login attempts of non-existing user ...
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  • 543
6 votes
3 answers
2k views

Honeyd: log grows too fast

I'm having trouble with honeyd log; it grows way too fast. I started the honeyd daemon with honeyd -l /var/log/honeypot/honey.log -u 1000 -g 1000 -f honeyd.conf /var/log/honeypot/honey.log is 1+ GiB ...
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  • 161
4 votes
2 answers
12k views

Filtering Telegram Traffic

I want to filter Telegram Messenger to monitor the network activities (logging) from any platform. I'm wondering if there is any signature I can look into to detect the traffic, maybe a list of server ...
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4 votes
2 answers
3k 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 ...
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  • 367
3 votes
2 answers
876 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 ...
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  • 1,547
2 votes
4 answers
3k views

Can ISPs log IP connections?

I know most, if not all, ISPs log the IPs you had tied to your network, but do ISPs keep logs of the IPs you have tried to connect to? For example, let's say I went to google.com, would the ISP be ...
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1 vote
1 answer
863 views

Wireshark log analyzing

I have the following Wireshark log and I want to categorize the attack. I think it prints the user under apache runs and then prints the system information. From this log can we determine if the ...
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  • 169
0 votes
2 answers
66 views

Can my employer see my private google account history when just logging in and out in a matter of 10 seconds on a work laptop

Can my employer see my private google history/”google activity” if I didn’t do anything on my work pc? For some context I logged in to my private google account on my work computer just to send a pdf ...
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