A rootkit is software that enables continued privileged access to a computer while actively hiding its presence from administrators by subverting standard operating system functionality or other applications. The term rootkit is a concatenation of "root" (the traditional name of the privileged ...

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My computer hacked? tcpdump show a connection to an ALLOCATED UNSPECIFIED ip address

13:06:05.345111 IP 192.168.1.101.36218 > 157.55.130.174.40033: Flags [.], ack 162, win 237, options [nop,nop,TS val 688796 ecr 596714815], length 0 This IP address is Allocated Unspecified on ...
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63 views

UEFI secure boot and rootkits

I heard that with UEFI secure boot enabled a custom kernel module that is not signed will not run, hence a rootkit might be difficult to install. Can a secure boot really block rootkit modules from ...
2
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1answer
103 views

I ran a virus on a PC. What should be the next steps?

I wanted to remove a probably malicious executable, but instead inadvertently double-clicked on it while using an account with administrative privileges. Nothing visible happened during a few seconds, ...
3
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0answers
42 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 ...
2
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1answer
77 views

Linux Rootkit / BIOS Malware: What packages are necessary to get infected?

Everybody knows about the dangers of Rootkits / BIOS malware. What do you say about this countermeasure? In order to actually get infected the malware needs to use the OS to 'patch' the BIOS chip. ...
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Is it possible for a phone to be transmitting even while turned off and the battery removed?

Is it technically or theoretically possible for any part of a mobile phone's circuitry to be still on and transmitting even while turned off and the battery has been removed? If so, how? I am ...
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1answer
48 views

Questions about common exploits

I'm investigating the state of my MacBook Pro which I know was compromised, and do not know if I removed the exploits completely (and I realize, technically will never know this). I'm trying to hone ...
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1answer
41 views

Is an Antivirus scan via network share equivalent to an offline scan of the system?

When a system is suspected to be infected, one of the measures often recommended for cleaning the system (without actually taking the "nuke from orbit" approach) is to scan the drive with anti-malware ...
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3answers
755 views

How does a root kit work inside a virtual machine?

In my class, we are discussing virtual machine based root kits. I've research root kits, but could not find any information specifically talking about how root kits work inside of virtual machines ...
2
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1answer
291 views

How to detect infected devices on your local network [closed]

Today I read about a researcher who bought a digital TV recorder and connected it to the internet - probably using port forwarding to enable attackers to connect to the recorder. After a while someone ...
5
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1answer
219 views

How to detect malicious code sending information to attacker's server in linux

Suppose you have some malicious code on your linux laptop, for example a rootkit or trojan or something like that. Now restrict your attention to the case that the malicious code does transfer some ...
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1answer
193 views

Linux kernel 3+ system call table modification detection [closed]

Is there any available tool which can check kernel 3+ system call table for modifications? Also I want to know, is there any automated general tool to check Linux for unknown rootkits? Not like ...
2
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1answer
53 views

After restoring from a (valid) full disk backup can malware still persit?

In the comments to this question it is mentioned that even after a backup recovery malware still can persist. Do I understand that correctly? How is this possible? If Acronis True Image is used to ...
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2answers
1k views

Detecting and removing Absolute persistance technology

Absolute persistance technology amounts to a persistent rootkit pre-installed by many device manufacturers (Acer, Asus, Dell, HP, Lenovo, Samsung, Toshiba, etc) to facilitate LoJack for laptops, and ...
3
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1answer
168 views

Does reinstalling ubuntu eliminates all existing rootkits/ malware/spyware/ virus etc?

If I do a fresh installation of ubuntu from an uninfected cd, will it remove all the existing rootkits/malwares/spywares/viruses etc if any ? Is formatting the hard disk required before reinstalling ...
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2answers
175 views

What if I've been hacked and my IP is static? [closed]

My computer has a rootkit of some sort and the attacker can see everything that I do on it. I need it to do something related to banking, so I have to secure my computer first. I have a CD of windows ...
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2answers
173 views

Malware getting root access via “sudo” and “sudo -s”

Actually, I'd like to ask 3 questions. But since they are very related, I'll ask them all here. I use Ubuntu 12.04.4. Situation 1: I use Terminator, in one of its terminals I launch sudo iotop ...
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1answer
222 views

RK Hunter Warns about /usr/lib/apache2/mpm-event/apache2 uses deleted files, how to further investigate the matter and how shall I treat it?

I have a cloud server that I am preparing for a small E-Commerce website deployment. I've used a RSA-2048 keys right before booting the newly purchased server, with the help of the Provider's Control ...
1
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2answers
283 views

Is badBIOS real? [closed]

We've heard a lot about badBIOS and how low level rootkits can be used to exploit/bypass traditional security but can this story be true? bypass operating system security hide from the system ...
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2answers
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How would one know if they have a rootkit?

Are they impossible to detect? Seeing as the attacker has admin rights and could modify anti virus software that might otherwise be used to detect or circumvent a root kit. Are there certain red flags ...
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0answers
129 views

Does Windows 8 UEFI Trusted Boot protect SSDT table from modification?

I read from a link that says: Trusted Boot takes over where Secure Boot leaves off. The bootloader verifies the digital signature of the Windows 8 kernel before loading it. The Windows 8 kernel, ...
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0answers
51 views

How to remove rootkits and malware? [duplicate]

I have downloaded and ran the programme Rootkit Hunter and the results are worrying. I don't know much about malware other than a malicious individual has persistently been installing it onto my ...
3
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1answer
411 views

Tools to analyze Hooks on Windows 7 / 2008, x64 platform [closed]

What tool can I use to analyze Hooks (SSDT, Inline etc.) on Windows 7 / 2008? (x64 Platform) Rku (Rootkit Unhooker) is the only tool I know, which is not available for x64 platforms.
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1answer
911 views

How to remove ssh rootkits? [duplicate]

I checked my linux server with rkhunter, I got following warning messages, ... [00:35:35] Found file '/usr/include/gpm2.h'. Possible rootkit: Trojaned SSH daemon [00:35:35] ...
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3answers
436 views

Is it safer to compile open source code vs simply running the binary?

I understand that with OpenSource software, my milage may vary based on the trust of the author and the distribution platform they use (Codeplex, Git, or private server). Oftentimes a FOSS website ...
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1answer
494 views

I wonder if my MacBook Pro with OS X got hacked?

Maybe I am getting a little paranoid. Lately my MacBook Pro with Mac OS X 10.8.2 is behaving a little different the usual. The last strange thing that happend was that in iTerm2 when I tried to sudo ...
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1answer
346 views

Is suspicious network activity likely to be caused by a rootkit?

Netstat has been one of my favorite tools to check out possible malicious connections, but then I heard about the dangers of rootkits and their high complexity, allowing them to be able to bypass ...
1
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1answer
387 views

Macbook pro, rootkithunter

I've never really tried to understand rootkit enough, I'm too much paranoid... I recently reinstalled mountain lion, but my EFI might be infected. I have a macbook pro, it was really slow at some ...
4
votes
3answers
909 views

what is the difference between boot-sector virus and rootkits?

I have read the definition for both and also read about a few examples for both the cases. I'm still not very sure what the difference is. Is the difference blurred or are there some specific ...
3
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2answers
380 views

How to practically detect current system net traffic?

I know that some viruses or trojans can install rootkits or bootkits to change system's normal behaviour; AFAIK for example filter queries for running processes or even hide active TCP ports. My ...
4
votes
2answers
1k views

How helpful is rkhunter?

I have a software firewall implemented on my server, and I have closed all unnecessary ports. I have strong passwords, and I validate user input on my website. With these things already in place, do ...
4
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3answers
1k views

how to detect the origin of a hacker attempting to breach or who has sucesfully breached a network or system

In the case of detecting that a system is infected with a root-kit, what if any thing can be done to trace route the origins of the remote out going packets to attempt to find out where the attacker ...
4
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1answer
741 views

Icesword rootkit detector, How does it work?

I'm curious about how I can learn more about icesword rootkit detector. I've only used it and never studied it myself. Ive always been curious how it works. As far as I understand it works by ...
5
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1answer
532 views

TPM bootstrap process

Assume that the file partition where the PC operating system and user data reside are sealed by a number of PCRs (Platform Configuration Registers) dedicated to BIOS measurements. What happens during ...
11
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2answers
531 views

How to analyze a rootkit?

The other a friend of mine sent me a rootkit/code he found on a server that was exploited (php cgi exploit). Now I was thinking of having a look at it, but I was wondering if there are some basic ...
17
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3answers
754 views

Why do rootkits hide in drivers?

A lot of rootkits for Windows (maybe even Linux?) do hide in drivers. Why is that? One reason I can think of is that using a driver they run in kernel mode and have full system access, but aren't ...
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0answers
154 views

Hidden Registry Strings - possible rootkit? [closed]

Win server 2003 R2 SP2 - no noticeable issues on the machine. When I create new strings in regedit, I hit refresh and they are gone! I try to re-add and it complains the string already exists. I am ...
25
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4answers
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Can A Powered Down Cell Phone be Turned On Remotely?

I know this is tin-foil hat fodder, but at least one judicial opinion (http://www.politechbot.com/docs/fbi.ardito.roving.bug.opinion.120106.txt) referenced a bug that could track/listen in on the ...
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1answer
330 views

What are the most sophisticated techniques used by intruders you have found in the wild?

I am beginning to get involved in incidents, some of them are APT (Advanced Persistent Threat). Despite the complexity available in the 'bibliography' and in the conferences or security e-zine, the ...
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2answers
2k views

Rootkits on Mac OS X

Is there known existence of rootkits for Mac OS X, and can you please provide examples? What software would you recommend to detect rootkits on OS/X? From a software developer's perspective, can you ...
15
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3answers
662 views

What is a rootkit?

As a followup to "tripwire-is-it-security-theater", I'm looking to get a better idea of what a rootkit is, or to be more clear: What is a kernel module? What at high-level is the flow for how it's ...
6
votes
2answers
3k views

Perl script rootkit (exploit)

I received a spam abuse few days ago on my server. As a precaution, I blocked the SMTP port and started an investigation. I found a running Perl process. The script it was using was deleted but I ...
9
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2answers
1k views

Which Linux kernel vulnerabilities allow installing a kernel-level rootkit?

My question is related to vulnerabilities that allow installing a Linux kernel-level rootkit (for example, to modify the execution flow inside the kernel; for return-oriented attacks; or to modify ...
14
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4answers
3k views

What risk does Carrier IQ pose, exactly?

There has been a lot of discussion about Carrier IQ, monitoring software that is pre-installed on many Android phones. Many allegations have been thrown out. My questions: What exactly does Carrier ...
6
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3answers
359 views

Do any antivirus products use “canary files” to detect rootkits?

Recently, I've learned how some rootkits are able to hide certain files, services, etc. from programs in the kernel or user modes. This got me wondering: Are there any antivirus programs, or other ...
10
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5answers
1k views

Detecting malware-infected USB drives

I'm about to distribute some relatively cheap promotional usb drives to some of my company's clients. I'm fairly confident the company I purchased them from wouldn't intentionally implant malware on ...
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7answers
1k views

Why do malware creators use such clever technologies for such silly purposes?

Some days ago I got infected by a malware, probably something new and very clever, as it went in unstopped and no scanning tool was able to detect it afterwards (see this question). It was a ...
11
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4answers
529 views

Unknown malware, how to report it and whom to report it to?

I'm a professional Windows system administrator, but I've been caught off-guard (or maybe some malware writer has been very clever) and I caught some unknown malware on my home computer (Windows 7 x64 ...
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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: ...
13
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5answers
1k views

Are there ways to protect the guest kernels at the hypervisor level?

Let's say I have a linux guest running in xen and I want xen to check the integrity of the guest kernel so that I know there aren't any rootkits, or similar, active. Is there a way to accomplish this ...