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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Can Restarting An Infected Computer Make It Worse?

I seem to remember that rebooting a potentially infected Windows PC before removing the malware may allow it to take advantage of early boot up states that may be vulnerable if the security measures ...
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1answer
76 views

Is a rootkit not an exploit?

I once referred to the bluepill rootkit from 2006 as an exploit. I was corrected and told that rootkits aren't exploits. Is this true? I thought an exploit included any software that was used to ...
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1answer
40 views

What kind of damage does the HummingBad Android malware do when it fails to gain root access?

There is this Android virus out there called HummingBad, and it seems the first thing it tries to do is try to get root access. There are so many device models out there, and the rooting process is ...
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0answers
31 views

How exactly does the HummingBad Android malware gain root access?

I've read a little bit in the last few days about HummingBad, an Android virus which tries to gain root access. It seems to use the root access to display ads and install apps. Varying estimates put ...
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2answers
99 views

How does malware protect its own malicious code from being exposed?

For example, if a new rootkit starts spreading and reaches a malware honeypot, any skilled security specialist could get a memory dump of the system, find the malicious code and reverse engineer it, ...
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1answer
46 views

Is rootkit detection by comparison of file, process and connection lists a good practice?

I'm currently reading the Blue Team Handbook and one of the recommended methods to detect rootkits is to compare technical data obtained from various sources. As I understood it this is practiced like ...
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0answers
29 views

Will zero-filling empty drive space detect bootkits?

I've heard that bootkits generally write their payload at the end of the drive, and don't register this data with the host OS. Does that mean, that to test for bootkits, I could simply zero-fill all ...
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0answers
26 views

Weird connection error prompts, Rootkits & MitM?

Can someone give me insight on these connection error prompts? https://imgur.com/a/FEHJj My internet kept reconnecting two weeks ago and I couldn't access the internet until I performed a hard reset ...
2
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2answers
112 views

Finding a backdoor on a server?

Let's say I hire someone (freelance), for IT work on an Ubuntu server. The server has a good firewall, I run clamav, chkrootkit & rkhunter scans weekly, and I try to keep good practices. The ...
9
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5answers
2k views

Can we trust the information displayed by the linux utility commands for a vulnerable machine?

After checking a vulnerable linux machine for rootkit and deleting them, we need to get some informations about the process , port ,incoming or outgoing connections... , using some useful commands as ...
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0answers
79 views

Android Rooting and Evil Maid Attacks

I'm trying to learn more about full disk encryption (in the context of a Linux based server) and what schemes offer true security and which only offer the illusion of security. As I understand it, ...
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0answers
31 views

Can linux cgroups and namespaces assist hiding malware?

Reading about sandboxing/security possibilities I was looking a bit into cgroups and namespaces and asked myself: How do I know that my linux root account is indeed the real root account and not ...
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1answer
95 views

How to clean-up an iPhone

Suppose that an iPhone has been rooted and a back-door installed on the firmware and that this was done in a way that the factory re-start cannot clear out the problems. How does one clean up this ...
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0answers
36 views

Rootkit driver to change executed instructions

Say I have a process that has a bunch of functions I want to NOP out. From userland, I want anyone viewing the virtual memory to see the normal instructions. However physical memory, and in the end ...
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votes
1answer
77 views

How can you set a wireless router password that nobody (including yourself) knows? [closed]

Consider the following hypothetical situation: On a Macbook, A hacker can view the screen of your machine (and may have a keylogger installed). It is impossible to remove them even by reinstalling ...
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1answer
30 views

Host Based IDS with syscall monitoring

Hey Guys I am a newbie in security stuff and now I am working on my final project about host based IDS. I have some questions to you guys Can a rootkit be classified as an intrusion or is it a ...
3
votes
1answer
115 views

Can a rootkit hide processes from “Volatility” or other memory forensics tools?

I know that a rootkit can hide processes from the OS by fooling around in the userspace. But can a rootkit also modify a processes metadata in a way that it won't even be recognized by a RAM forensic ...
3
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0answers
78 views

Can a mobile phone be reliably “nuked from orbit”? [duplicate]

Similar to how a rootkit affects PCs, and how mobile phones have special OEM software on them.... Is it possible to reset a suspect phone to it's OEM/patched state, and have high confidence that ...
2
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3answers
139 views

Why include a private key in a root certificate?

In the recent Dell root certificate issue (see https://threatpost.com/dell-computers-ship-with-root-cert-private-key/115455/), the private key was included with the certificate. This is baffling to ...
5
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1answer
170 views

What do malware authors using android root exploits go after?

I know there has been a lot of discussion on rooting on the internet and even on stack exchange. What I want to ask here is not how rooting works - assuming the root exploit as a black box, what ...
2
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1answer
108 views

Effectiveness of Secure Boot on kernel-mode rootkit detection

With so many new patches and updates, how effect is Secure Boot on detecting kernel-mode rootkits?
3
votes
1answer
112 views

Pendrive rootkited?

I need some help here. I have an infected pendrive (unknown virus), what this virus is doing is just move my files to a hidden folder (.Trashes) and make links to those files (Actually the links doesn'...
3
votes
2answers
213 views

How to track down and remove Mac malware that is calling out? [duplicate]

Little Snitch periodically brings up a dialog that says: Terminal via node wants to accept an incoming connection from X on port 3000 (remoteware-cl). X are different IPs in eastern europe. A full ...
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1answer
59 views

OS X terminal starts from other device (got rooted?)

I've recently noticed that my terminal starts with something like "android... " even though I don't have any android device. Furthermore I noticed that my macbook only starts with "android..." when it'...
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2answers
522 views

Could one fit a root application in sim card

In the third Mr.Robot episode a character inserted a Micro-SD card in a smartphone in order to root it and gain information, so I thought maybe someone could fit a root-kit on a Sim-card. Would that ...
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2answers
192 views

Server compromised with magento vulnerability, possible rootkit

I am experiencing a security issue with one server that it happens that I manage. I will try to cite all relevant facts as briefly as possible. I am asking for any additional information and course of ...
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2answers
163 views

Malware From from external drive

How do malware start from external drives? Especially on Windows (from > Windows 7) commands like Open=Example.exe on an autorun.inf file have been defaulted disabled to not allow auto run when an USB ...
2
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0answers
116 views

What protections are put in place to prevent rootkits from getting ring 0 access?

I've been learning about What is a rootkit? As well as rootkit building and general system architecture. I have read that there are "User mode" rootkits that run in ring 3. But these aren't the ...
2
votes
0answers
35 views

Find the installer of a Rootkit and reason for attack on a Linux OS? [duplicate]

My Linux Jenkins server was compromised and a Rootkit was installed. I know this since a running process tells me the path Jenkins job is running and it includes a URL with path pointing to a Python ...
22
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2answers
3k views

Can a Trojan hide itself, so its activity doesn't appear in task manager process? [duplicate]

Can malicious software hide itself, so its activity doesn't appear in the list of processes from Task Manager? Can it hide itself so when someone is controlling your computer, even if you open Task ...
0
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1answer
69 views

Can standalone malware survive on current mobile devices? [closed]

Can malware run on mobile devices? I don't see how it would be able to (given that those devices have fine-grained permissions and sandboxing). Unlike on a desktop OS, malware cannot access registry ...
3
votes
3answers
155 views

What can manufactures of hardware do to prevent attacks on the firmware?

Given the revelations since The Equation Group was discovered. As well as that it is possible to not guarantee removal of a rootkit even with a nuke from high orbit. What properties of a harddrive ...
4
votes
1answer
1k views

How to minimize the risk posed by Intel AMT/ME's “ring -3 exploits”?

This question is about how to minimize the risk posed by Intel AMT/ME's ring -3 exploits? I'm looking for advice on common strategies and practices. Here is my current situation. I am parking my ...
11
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2answers
480 views

concrete real-life examples where grsecurity prevented an exploit

From theoretical point of view, grsecurity kernel patch looks like a great hardening tool. Most importantly, PaX seems like a good idea. Do these theoretical advantages have indeed practical effect ...
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2answers
152 views

High Level NSA Target, Help/Feasibility [closed]

I would like to know the feasibility of certain kinds of attacks. To be clear, assume the target is a high-level priority of the NSA. Is an OS such as tails useless against root-kits/keyloggers, etc?...
5
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4answers
513 views

Besides MBR & BIOS, is it possible for a rootkit to stay persistant after a format of the harddrive?

If a system becomes infected and does not have any other storage units besides the one hard drive. Is it there any other way for a rootkit to stay on the system besides infecting the BIOS OR the MBR ...
11
votes
5answers
331 views

Security of root terminal (su -) when logged into X

I often log into X as normal user (of course), open terminal and switch to root: su - I have then a terminal owned by user but effectively with root privileges. Are there any security issues in ...
4
votes
1answer
386 views

Does malware which infects the BIOS/ Firmware always need 'root' access to do so?

There are very few hardened Operating Systems who restrict or totally disable Terminal 'root' access for the user. Would this feature prevent persistent BIOS rootkits from writing into BIOS or ...
23
votes
3answers
3k views

Linux-based Turla trojan

There are several articles describing the newly discovered Linux-based Turla trojan. But basically, all these articles repeat the same, very limited, information. Can anybody provide more details, ...
2
votes
1answer
157 views

How Regin hides running instances of itself?

I have been reading Symantec & Kaspersky Labs analysis of the Regin malware. According to Symantec [Stage 2] can also hide running instances of Stage 1. Once this happens, there are no ...
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votes
1answer
311 views

Home PC has been compromised remotely and even after cleaning my PC repeatedly, the problem still comes back, help please? [closed]

I'm a regular guy running two small franchise businesses with a basic understanding of computers etc, (very basic really), but I am certain my home network has been hacked and I am finding lots of new ...
0
votes
1answer
286 views

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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2answers
947 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 ...
3
votes
2answers
297 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, ...
0
votes
4answers
111 views

post-disk-wipe computer security

I have a standard Dell or Asus-motherboard based computer. it is a hard-disk or RAM. it was hacked remotely. I suspect that they were sophisticated. I am happy to reformat the disk and/or throw it ...
3
votes
1answer
154 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
votes
1answer
424 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. ...
9
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5answers
8k views

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
81 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 ...
0
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1answer
129 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 ...