Questions tagged [rootkits]

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 account on Unix operating systems) and the word "kit" (which refers to the software components that implement the tool).

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

Hidden Process Discovered in Tails OS

How concerned should I be about this result from unhide? unhide-linux scan starting at: 17:02:43, 2020-03-23 Used options: logtofile [*]Searching for Hidden processes through /proc stat ...
0
votes
0answers
39 views

How can I tell if my laptop has a root kit installed?

I've noticed some strange behaviour on my home laptop (eg never sleeps even though configured to do so, and starts running flat out when it's been idle for a while) and am wondering whether it is ...
1
vote
1answer
180 views

Security of a laptop order

What's the likelihood of a laptop being compromised when it comes directly from a trusted computer store or a large, known computer technology company? Would there be any liability if malware or ...
1
vote
0answers
108 views

Passively read key from process memory without invoking kernel (windows 10)

I have a process that loads into memory like any other process. It contains a special key. Our goal is to read this key inside memory...or while it is in transit across the data bus from cpu. The ...
-1
votes
1answer
66 views

Confused as to what changing the internal process of the OS is [closed]

I am a highschool student taking TestOut's Ethical Hacker Pro. Currently I am learning about rootkits and Sirefef. When explaining Sirefef, it says: Sirefef hides itself by altering the internal ...
1
vote
0answers
336 views

Find out if a process is legitimately allowed to use “shared memory segments”

rkhunter is checking for processes using shared memory segments and warns with output like: Warning: The following suspicious (large) shared memory segments have been found: Process: /usr/bin/python3....
4
votes
1answer
345 views

What are some of the benign use cases of injecting bytes into another process and creating remote thread?

Lets say, you are developing an AV, and marked any type of injecting into another process (for example openning it and writing to it) and creating remote thread malicious. If so, what will be some of ...
-1
votes
1answer
103 views

Macbook Pro compromised / Rootkit. Are the files I pulled onto my external drive safe? [duplicate]

I am basically positive my macbook pro has been hacked and has a firmware rootkit installed on it, and at this point I have decided it is now a brick and I need to move onto a new computer. The ...
0
votes
1answer
72 views

Should i update the BIOS

I was reading about BIOS vulnerabilities and rootkits that have flashed malicious code to the BIOS in order to maintain access after a factory reset/operating system install or a hard drive ...
1
vote
2answers
83 views

PC Component Firmware integrity and security

I recently bought a new laptop. If you read the news you must've noticed Vault 6 and Vault 7 leaks (from Wikileaks), which contain rootkits which sit on your Hard Drive Firmware, MBR and other ...
1
vote
3answers
156 views

Can any Windows app install a kernel driver? if not, then how can Anti-Viruses install kernel drivers?

Can any application install a kernel driver? if not, then how Windows decides who can and who cannot? If AVs can install kernel drivers, considering they are an application with an installer just like ...
1
vote
2answers
190 views

Can rootkits hide their internet usage from resource-manager and third party software in windows 10? If so, how?

Lets say I have the latest windows 10 version. I also have DU meter for checking my network usage I know that in windows there is a linked list of processes that many rootkits tend to remove ...
0
votes
0answers
19 views

How rootkits hide a specified process? [duplicate]

I heard that a rootkit can hide itself and specified files, processes, and network links. I know it can set a file to be hidden, but how does it hide a process? Such as, there is a httpd process ...
3
votes
1answer
168 views

When to use which rootkit?

According to my understanding so far: a kernel-space rootkits runs in ring0 and use techniques such as syscalls a user-space rootkits runs in ring3 and uses techniques such as library injections ...
-1
votes
1answer
111 views

Can a rootkit hide its data in slack space of pages in memory instead of disk?

So I'm asking about Linux or Windows type of rootkit/malware is this possible? can a rootkit use the slack space in the pages of the memory instead of disk to hide data? if so, has this ever been ...
1
vote
2answers
158 views

Can a rootkit write to a virtual memory of a kernel process and rewrite a instruction to jump into his own malicious code inside that process?

So lets say we have a rootkit on our system can this rootkit write something inside a kernel process? for example in windows, can a rootkit write to ntoskrnl process, changing some functions and ...
0
votes
0answers
72 views

How to spot malwares that hide their disk usage from Resource monitor?

So lets say a malware has hid itself from task manager, so it wont show up in there. lets also say that it also hides its disk usage from resource monitor as well. (based on previously asked ...
0
votes
1answer
482 views

Does secure boot protects against firmware rootkits and GPT bootkits?

This question is related but only partialy answers my question. I know firmware (most notably UEFI firmware) rootkits or bootkits are rare and possiblity to introduce one into system is very low, but ...
3
votes
1answer
76 views

What tools and techniques do we have at disposal to manually search for rootkits?

I use tools from sysinternals for various tasks (ex. process monitor), but I'm not sure if these programs can be used to manual rootkit detection since rootkit processes can be hiden. Are there any ...
1
vote
1answer
33 views

Discrepancies between rkhunter itemized report and summary

I am new to rkhunter, which I have been using on Lubuntu 18.04. While it is running, it indicates an itemized scan of rootkits in two waves. First, it states: Performing check of known rootkit files ...
2
votes
0answers
294 views

Weird Python script found on a Mac Os X client machine

I was reviewing a Mac Os X machine (a late 2016 MacBook Pro) and I found some weird scripts in the LaunchAgent folder. 8 -rw-r--r-- 1 XX wheel 500 30 Lug 07:18 com.1e1zq.plist 8 -rw-r--r-- 1 XX ...
0
votes
1answer
602 views

Is it possible for the firmware of an SSD be infected by malware/malicious rootkits via the internet?

I am asking this because based on Snowden's relevations, bad actors "interdict" (intercept) shipments of routers, HDDs, SSDs, servers, etc., install malicious rootkits and spyware in the firmware and ...
3
votes
1answer
331 views

Remove malicious rootkits and spyware from HDDs and SSDs

I have read at least twenty articles dating from the time Edward Snowden's startling revelations about rogue nations and bad actors embedding malicious rootkits and spyware in the firmware of hard ...
2
votes
0answers
49 views

My server is compromised through apache - help! [duplicate]

As mentioned previously, I cannot physically remove the server from the internet as I do not have physical access. So, very little information in the ticket marked duplicate is relevant. I am going ...
0
votes
1answer
140 views

Unexplained DNS connections on boot

I was on an Ubuntu VPS today, with a bind9 DNS server (without DNSSEC configured) installed and running. Immediately after booting the machine I ran: netstat -tanp And received this output: Proto ...
2
votes
3answers
2k views

How to remove MBR Rootkits/bootkits?

How do I remove them from internal hard drives and USB sticks? Can they infect MicroSD cards as well or anything else? DVD? cd? Heard it's possible to do with a live CD via formatting. What are best ...
1
vote
1answer
160 views

Somebody called a number from a pop-up on their MacOS computer and installed a program called GoToAssist. What is the best course of action now? [duplicate]

Somebody I know saw a pop-up on their iMac running Sierra (10.13.5) that advised them to call 877-336-5833. They called the number and the representative advised that they install a program called "...
2
votes
1answer
287 views

Detect and remove rootkit from Debian 8.5 (x64)

My Debian 8.5 (x64) server is infected with a rootkit, which I have detected by using a live CD to display the contents of /tmp and /var/tmp. I found out about the infection by seeing high CPU loads ...
2
votes
2answers
357 views

Does Windows protect MBR from being overwritten?

I have read article about TDL/Alureon Rootkit: According to research published on Monday by GFI Software, the latest TDL4 installation penetrates 64-bit versions of Windows by bypassing the OS’s ...
5
votes
1answer
129 views

How can a rootkit infect Windows without signed driver file?

Windows 7 64 bit and newer versions feature Driver Signature Enforcement, which prevents loading an unsigned driver. Then how can some kernel-mode rootkits infect Windows? I rea Lets say, some user ...
-1
votes
1answer
355 views

What should I do if C:\Windows\System32\svchost.exe got infected? [duplicate]

The original svchost.exe file in my Windows XP was changed with a malicious copy, I think this is easy to do on Windows XP. How am I supposed to return it to the clean original without crashing the ...
1
vote
1answer
69 views

Access encrypted system/files with rootkit

I have encrypted files that I need access to but I believe the BIOS/UFEI/hardware or recovery partition have a rootkit or keylogger now in order to get my encryption password for the encrypted system ...
3
votes
1answer
852 views

Examples of non signature based anti-malware/anti-virus programs, IDS, & system integrity scanners

All traditional anti-virus software uses signatures to detect known malware after it has been discovered by the software companies and added to the definitions. Heuristic definitions allow a piece ...
-2
votes
1answer
450 views

What exactly is the meaning of 'trojan' and 'rootkit'? [duplicate]

I know both are a type of malware, trojans 'disguise them self as a useful program' and rootkits 'embed them self in the system to avoid detection'. Technically how do they accomplish such things? I'm ...
1
vote
1answer
354 views

SSD Wipe to remove known & unknown malware [duplicate]

Does anyone know of a method to wipe a HDD that gives a high degree of confidence that any malware present will not persist when the OS is reinstalled? Using tools on Linux and/or Windows? We have ...
3
votes
4answers
224 views

How To give someone a shell in my local net without security risks?

I have a server A in my local network in my house. I want to allow someone to come to that server using a reverse ssh connection from my server to his server from which he can get to my server. I don'...
2
votes
1answer
631 views

How to load a malicious LKM at startup?

How could a cracker force the loading of a kernel rootkit at boot? Is there a way to link the malicious module with another module so that it is loaded automatically without any insmod command?
2
votes
0answers
417 views

Can VBR rootkit survive format?

I found this article which talks about a rootkit which infects the VBR and creates a virtual file system in unallocated space between partitions. I know that there are MBR rootkits which cannot be ...
0
votes
1answer
106 views

can a malware conceal true browser history

Suppose a zero-access malware like TDSS/Blue pill Kernel rootkit invades. If it opens any of my logged-in sites (2FA enabled, so that they can't just go incognito or open in any other browsers or ...
1
vote
1answer
66 views

There is a recommanded solution to protect SRP verifier to be used if the DB is leaked?

We working on a new website we would like to use SRP protocol. So the salt and verifier are sent to the server, and in theory the server store them like that in a database. If the DB is leaked, ...
0
votes
1answer
152 views

chkrootkit weird output DEBIAN 9 [closed]

I recently had this in the chkrootkit output comparison : +! 7:0| 255 0:0|242:0|243:0|245:0|253:1|254:1|7:0| -stringPrefs 3:7;release|174:3;1.0|191:332; ¼½¾ǃː??։֊׃״܁܂܃܄ᅟᅠ᜵           ???‐’․‧?...
4
votes
3answers
1k views

Should I be worried about rootkits?

*Note: My question is quite specific to my situation. Although there may be an answer out there, I am unsure how to search it. * I am curious to understand more about optimizing my internet speed for ...
0
votes
0answers
803 views

BIOS rootkit : Computrace and Wiping SSD HPA on Linux + protect it with custom encryption

My primary goal is to close firmware backoors. First, I want to know if my plan might work or not, and if it is a good idea, how to implement it: I erased preinstalled Windows and installed Linux ...
1
vote
0answers
62 views

Is there a way to install a rootkit without kernel headers?

I was just wonderin, is there a way to create a rootkit without the kernel header files? I'm trying to have fun with a mips device and I'm curious if there is another way to infect it.
1
vote
1answer
573 views

How do you assess if your computer has a hardware rootkit? [closed]

How do you assess if your computer has a hardware rootkit? There was another question about Chipsec with no answers, I assume no one knows the answer. Any other way to assess?
1
vote
1answer
665 views

XSS attack on to get root priveleges

Is there any way of execute an xss attack inside a Linux machine to get to sudo mode? I know Linux is designed to separate the two types of user. I guess, i don't really know but I guess diferent ...
3
votes
1answer
160 views

How does Windows schedule a thread when the thread has no process?

I have heard that some rootkits try to hide themselves by destroying the process object (nt!_EPROCESS ?) but keeping the thread alive (nt!_ETHREAD ?) . That way they are not visible in tools like Task ...
1
vote
1answer
782 views

Hacked: Can a UTF-8 encoded script execute non-UTF-8 characters?

To be honest, I'm not really sure the best title for this question, or the full scope of it, but the motivation behind it is: Motivation Assume your server was hacked, you open up your UTF-8 encoded ...
1
vote
1answer
303 views

Can malware attach itself to user files?

Recently my AV has been detecting Trojan backdoors, Rootkits and Worms quite often. Some go unnoticed (I've checked suspicious files in VirusTotal a few times and they indeed turned out to be malware ...
1
vote
2answers
122 views

Clearing/Securing an android device from untrusted source

There has been at least one notable case of a minor seller/brand shipping android phones with malware pre-baked, and some threads have already discussed that a factory reset won't necessarily kill ...