Questions tagged [intrusion]

Intrusion the act of wrongfully entering upon, seizing, or taking possession of property owned and/or operated by others.

Filter by
Sorted by
Tagged with
0
votes
0answers
22 views

Possible to verify the integrity of AIDE itself?

I recently installed the package AIDE (Advanced Intrusion Detection Environment) on my Linux server. This is a web server installed about a year ago. Since no integrity checks have been done before on ...
1
vote
3answers
178 views

How long does it take to have spyware installed on a laptop?

During my commute from an airport located in a country whose government is known for intrusions into the privacy of its citizens and non-citizens, I had my laptop taken from me during a routine ...
0
votes
1answer
85 views

Is fail2ban an intrusion prevention system?

I know what fail2ban does; it monitors the firewall logs and finds ip addresses that have too many failed logins to ssh; and then tells the firewall to drop packets from those addresses. So is ...
0
votes
1answer
115 views

What do people mean when they talk about “hackers gaining access to our network” (at home)?

Have I fundamentally missed something between the time when I sat with my 486 IBM PC in the house, fully offline, and today? Do normal people actually set up complex local networks in their homes ...
1
vote
0answers
94 views

How to check if hard disk was removed while in sleep mode?

Let's say that some malicious person extracts my hard disk (HDD or SSD) from my laptop, while it is in sleep mode. Is there a way to check for that event? I am mostly interested for Ubuntu OS, but if ...
0
votes
0answers
113 views

What tools in SecurityOnion can be used for web application intrusion logfiles in csv format?

I have some web server logs from a breach. Is there a tool in SecurityOnion where I can upload the log files in csv format and have some sort of behavior-driven, static IDS/IPS identify when a breach ...
1
vote
1answer
141 views

Norton Security blocked “Fake Tech Support Website” within router?

Norton Security (software installed on the computer) supposedly blocked a fake website coming from my internet router. (See the full alert details window screenshot). My internet router is a BT Home ...
0
votes
0answers
115 views

VDSL modem getting probed?

My ZyXEL VMG8924-B30A VDSL modem recently had these alerts in its log. The WAN IP address of the modem is 10.225.205.128. There was nothing like this before 1 May. What is this? 2019 -05 -01 T16:05:...
1
vote
1answer
150 views

Public Availability of a good Dataset in PCAP (TCPDUMP) format for IDS/IPS testing [closed]

I am trying to pass good reputable malicious traffic from an IPS. There are several sources on internet to explore datasets like the oldest I think DARPA set (not available in pcap format and not that ...
166
votes
4answers
40k views

GitLab account hacked and repo wiped

I was working on a project, a private repo, and suddenly all the commits disappeared and were replaced with a single text file saying To recover your lost code and avoid leaking it: Send us 0.1 ...
17
votes
1answer
3k views

Github account hacked and repo wiped - Github Response

One of my repo's was wiped today and just a message left in its place with a bitcoin ransom. I've no idea how they accessed my account, can't really see anything on github security page. The domain ...
0
votes
1answer
180 views

Advice to detect suspicious activities on network

A private network (about 150 PCs) is connected to the internet through an edge router. According to the net admin, his network is scanned from the outside, at the edge router. I don’t have any more ...
0
votes
0answers
179 views

Google Home Hub Network Traffic on Port 8009

I noticed my desktop, that has never been used for anything related to google home or signed into the google account used to manage the Home Hub, that is on the same subnet was sending traffic to the ...
1
vote
0answers
250 views

Can Zeek (formerly Bro) be installed as in-line IPS?

I'm starting a comparison paper about inline Network IPS. I was looking for an opensource anomaly-based detection engine with IPS capabilities. The easiest choice seemed Zeek(formerly Bro) but from ...
0
votes
1answer
2k views

Snort rule for syn flood attacks - Limiting number of alerts

So I have a snort rule that detects syn flood attacks that looks like this: alert tcp any any -> $HOME_NET 80 (msg:”SYN Flood - SSH"; flags:S; flow: stateless; detection_filter: track by_dst, ...
2
votes
1answer
175 views

What features would you use to detect a backdoor or a bot installation?

I was reading a document about logging and analysis. The document talks about statistical analysis and machine learning techniques to detect some attack scenarios. For instance, If you want to detect ...
1
vote
0answers
51 views

I think my ssh server is under attack and it's really trecherous [duplicate]

I'm new here so please bear with me. And thanks for the opportunity. This is an awesome resource. For the past few days, my ssh server (it's a small convenience I run just so that I can access my ...
0
votes
3answers
987 views

intrusion prevention system detected “et policy pe exe” should i worry

I have a UniFi Security Gateway (USG Pro 4P) and just enabled IPS (intrusion prevention system). I am seeing many "ET POLICY PE EXE or DLL Windows file download HTTP" alerts. I have not been able to ...
1
vote
0answers
77 views

Looking for incident response data

Good evening cybersecurity community; I am looking for a nice data set that comprises some cybersecurity incidents and describes how these incidents were solved. Doing such documentation is e.g. ...
2
votes
1answer
111 views

Can IP address considered as a useful feature for intrusion detection?

I am trying to build a machine learning model which classifies attacks. My data has a bunch of IP addresses, and I don't know if I should use the IP address as a feature to detect attacks. I found ...
2
votes
1answer
184 views

Compromise Google GSuite by buying expired domain

I saw a question a few days ago that talked about if a domain is bought by someone else then would the emails to that domain be compromised. And it got me thinking about google gsuite and specifically ...
-1
votes
1answer
371 views

How to safely expose a computer to the Internet with a public IP

Our LAN is configured behind a load balancing router, in turn connected to a modem assigning public IPs to connected devices. I am required to randomly test the connection effective throughput, ...
0
votes
1answer
130 views

How likely is it to see a commercial IDS/IPS that uses machine learning in the near future that performs better than a normal IDS/IPS? [closed]

I have to choose a field to study on and I want to know does it worth studying in this field and will the future IDS/IPS systems be using machine-learning/deep-learning or at least how likely is it? ...
4
votes
1answer
189 views

Windows: Who is this randomname person that authored *my* LibreOffice document?

A friend of mine for which I manage the computer has presented me a problem. How is it possible that Windows shows a random name in field "Authors" for a given document ? Here is a bit of context: ...
0
votes
1answer
125 views

Does this evidence seem consistent with an intrusion via the VNC server?

I am new to this forum, so apologies in advance if this question does not seem to fall within its scope, or if it seems too long: On two occasions over the past ~3 weeks, a hacker gained remote ...
1
vote
0answers
158 views

Snort not working with IDSWakeup

I have setup Snort with the registered user rules installed. I tested first by making the following rule in local.rules: alert icmp any any -> $HOME_NET any (msg:"ICMP test"; sid:10000001; rev:...
3
votes
1answer
132 views

Is there some type of x-ray that can see through HSM or shielded integrated circuit?

I know that security-oriented products can easily protect their contents from even the most sensitive commercial x-rays, which can see objects at about 0.5µm. But let's put cost limits aside (or ...
2
votes
0answers
237 views

What is the best way to test my anomaly detection system?

I have an IDS (Intrusion Detection System) built in C and I need to test it with real traffic. It is an anomaly detection system, so I need to train it with normal traffic first. The IDS that I built ...
-2
votes
1answer
245 views

Anomaly based IDS Vs Protocol state based IDS

Is there any difference between them? On google, I can find many description about anomaly based IDS. But I can not find any description about protocol state based IDS.
1
vote
1answer
315 views

Potential intrusion on home network?

I was browsing through my home network linksys router logs today and noticed an incoming connection from 41.212.36.114 to port 44543. I checked out this IP address at it's coming from Kenya. I'm in ...
-2
votes
1answer
81 views

Difficulty of accessing a physically connected Windows computer with disabled network adapter

Please consider the following setup: A computer running a non-deprecated and up-to-date version of Windows (e.g. 7/8/10) is physically connected to a LAN or WAN network by means of a plugged-in ...
0
votes
1answer
4k views

Is this event a security concern: Windows 10: Event 360, User Device Registration?

My computer just froze, and I ended up having to reboot. It appears Windows Defender was coming up with a notification, but that froze as well. I was trying to see what went wrong in the event ...
3
votes
1answer
195 views

How would an external attacker utilise universal plug and play to bypass a firewall?

I'm wondering what strategies and techniques are used to bypass firewalls which have universal plug and play. I'm aware of security issues regarding UPNP in the past but I've also heard that there ...
0
votes
3answers
149 views

What kind of damage controls should an online banking web application implement?

Considering an online banking or paypal-type web application with username/password login and two factor authentication (2FA) for transactions What are best practice security measures for damage ...
1
vote
1answer
73 views

Can using simultaneous intrusion detection systems (IDS) create conflicts?

Can simultaneously using 2 or more intrusion detection systems (IDS) on the same computer or network create conflicts ? Talking about tools (as examples) such as but not limited to: tripwire, bro, ...
-1
votes
2answers
1k views

Popup window stating computer is hacked [duplicate]

I recently got a message on my laptop screen that someone is stealing: my credit card info my pictures facebook info However, nothing seems wrong with my facebook and I have all my pictures and apps....
1
vote
3answers
1k views

Are these log entries normal?

I have noticed high CPU usage, and noticed that user dinko had high CPU usage with the sshd process when I typed top. User dinko was just some random user that I created and had a Ruby application ...
11
votes
2answers
10k views

HIDS - Choosing between regular OSSEC or Wazuh fork

I intend to set up OSSEC and noticed there seem to be two main flavours: plain OSSEC and Wazuh fork. From what I've been able to gather (from Wazuh's website and documentation), the main advantages ...
1
vote
1answer
151 views

non-rfc1918 address appeared on router dashboard

Quick context: Home network, performing some DPI on my perimeter router (Ubiquiti EdgeRouter Lite) that governs 2 internal subnets separating my traffic from a bunch of roommate devices. No IDS on the ...
2
votes
2answers
102 views

WireShark tried to load a suspicious system.dll

When starting Wireshark (v1.12.2, using runas /user:administrator) on an old Windows XP SP3 system, Privacyware Privatefirewall alerted me that Wireshark was trying to load c:\docume~1\admini~1\locals~...
1
vote
0answers
93 views

Intrusion detection - curating misuse/signature based detection data

I have been researching intrusion detection for a class I am taking and I have come to a certain point where after reading so many articles the difference between the two seems blurry. Anomaly ...
2
votes
0answers
2k views

Anyone can identify tool used to perform this attack?

recently I've identified that some hack attempt was performed at one of my servers. I have dumped nginx logs to github, please take a look and try to identify which tool was used to perform this ...
2
votes
0answers
236 views

What attack can be detected from SDN controller-flow information? [closed]

Edited. Sorry for my "too broad question" previously. Suppose that kinds of attack that I want to generate are these 4 big types of attack, DoS, R2L, U2R and Probe or scan attack by using appropriate ...
3
votes
1answer
312 views

Monitoring an uninvited guest on my WLAN? [duplicate]

At home I configured a common, residential, consumer-grade wireless network. It is build from a Broadcom router connecting a few personal devices (i.e. my laptop & smartphone) to the Internet. My ...
2
votes
1answer
1k views

Tap-mode IPS vs IDS

It is my understanding that tap mode IPS, unlike in-line mode, is passive and cannot prevent attacks. In that case, what is the difference between an IDS and a tap mode IPS? I've checked out several ...
1
vote
3answers
1k views

MAC address of source in RDP session

In a forensic analysis I analyzed the event logs of the affected machine and saw various RDP sessions from XYZ IP address. However to prove that the source IP was not spoofed is it possible that I ...
2
votes
1answer
70 views

Counting on firewalls only : sound security strategy to prevent intrusion?

I had this discussion with a friend of mine who is a windows sysadmin. He said to me that for his company's IT security, he is doing only updates on the windows server. But except these system ...
-4
votes
3answers
199 views

Is there a way to secure a Linux machine in a way that no one else (but me) can access its contents? [closed]

And I mean, even if someone tries rooting with a Live CD, even if one takes the HDD away and plug it in somewhere else, etc... I want to be able to give a client a machine with a service running, but ...
4
votes
1answer
172 views

Detect PC Boot from Live CD

is it possible to detect a boot-up via live CD (eg. Ubuntu, Debian, Tails ...) that happened in the past? If yes, where can this information be obtained? I suspect my PC has been booted through a ...
1
vote
2answers
196 views

Understanding the behaviour of existing eavesdropping techniques

I am studying the behaviour of existing eavesdropping techniques (part of my research). I have a question through the following scenario: Suppose Bob lives in New York and wants to listen (i.e. ...