Linked Questions

22 votes
8 answers
15k views

PHP malware/shell keeps resurrecting [duplicate]

So I've been fighting this problem for months now and decided that it's beyond my limited (if at all) server skills, and that I need help from the pros. I have a VPS (with root access) which hosts ...
An Phan's user avatar
  • 321
7 votes
2 answers
5k views

Hacked Ubuntu server, probably hacked commands (netstat, ps, ...), how to replace them? [duplicate]

An Ubuntu server of my company has been hacked to carry out a DoS attack. I found the shellshock bug had not been fixed by my colleagues, and I think it's the problem. Then, I found an ELF file that ...
roghan's user avatar
  • 97
7 votes
4 answers
6k views

What is nuke it from orbit? [duplicate]

I was reading this Windows 2003 Enterprise infected by Conficker; post-infection problems continue And they talk about nuking it from orbit (which apparently means wiping out the system and starting ...
user13267's user avatar
  • 359
1 vote
0 answers
68 views

Bought a used surface book online, any security precautions to take? [duplicate]

I have purchased a used surface book from Ebay, unpackaged and ran the device. The low price of the device lured me in despite my adverse attitude to used devices. Is there anything I need to perform ...
Gleb Pilipenko's user avatar
170 votes
10 answers
42k views

Should I be concerned if the "FBI" has logged onto my Ubuntu VPS?

Yesterday, I was performing a bit of general maintenance on a VPS of mine, using the IPMI console my host provided. Upon setting up SSH keys again via the IPMI console, I logged in via SSH and was ...
lol what is this's user avatar
43 votes
9 answers
13k views

What to do when I found a spyware that my spouse has installed?

Today I was trying to uninstall some application and I was very surprised to see this entry in my applications list Then I try to find what is this and I finally found it in "Program Files"....
Green Fly's user avatar
  • 1,957
23 votes
4 answers
11k views

Should I change all my passwords due to heartbleed [duplicate]

Should I change all of my online passwords due to the heartbleed bug? Edit: I found a list of vulnerable sites on GitHub and checked all my critical sites. Everything I was really concerned with ...
derelict's user avatar
  • 348
19 votes
6 answers
30k views

How can I safely back-up files from an infected computer?

Imagine a laptop that's been infected by malware, and that the owner hasn't backed-up their files.* They have pictures, videos, and documents they'd like to preserve, so they're hesitant to ...
user avatar
14 votes
5 answers
7k views

Can a Trojan horse hide its activity from TCPView?

Can a Trojan horse hide its activity from TCPView? I've done a little research before asking, but I still can't find the answer for this. I know that a Trojan horse can hide from the Windows Task ...
JohnSt's user avatar
  • 175
19 votes
4 answers
3k views

ESET warns: Skype attempting to communicate with unknown remote computer

I am frequently getting warnings from my ESET firewall, like that pictured below, that Skype is attempting to communicate over SSL with a remote computer that has an untrusted certificate: The remote ...
Shaul Behr's user avatar
  • 1,027
9 votes
4 answers
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 ...
GAD3R's user avatar
  • 2,231
2 votes
1 answer
1k views

How to replace certain backup files on a website every 30 minutes? [closed]

I have a website built with WordPress, unfortunately somebody hacked it several times, deleted my adsense code and put his own adsense. I tried many security techniques, changed database name, did ...
Arnold Rothstein's user avatar
5 votes
5 answers
2k views

Windows 2003 Enterprise infected by Conficker; post-infection problems continue

I used various tools to remove Conficker, and I pretty much succeeded, but I've had recurring problems afterward. It won't update anymore (with the following error message: 0x800706B5) I tried ...
user164144's user avatar
1 vote
3 answers
49k views

My computer was being remotely controlled by someone. Can find no viruses

Walking back to my computer (Windows 10), I noticed that my browser's history tab had just opened without me touching it and I thought I saw my cursor moving around. I had no control over my mouse ...
Vaidd's user avatar
  • 31
3 votes
1 answer
3k 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] ...
Kumar's user avatar
  • 161

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