Questions tagged [malware]

Malware is any software application which subverts the will of the legitimate owner of a computer, by means of force or subterfuge, with or without personal or monetary gain on the part of the creator.

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ClamAV scanning remote hosts from windows server

I am trying to find a way for ClamAV to scan remote hosts on my LAN and possibly automate this so it runs every night, I have around 10 - 15 VMs I'd like to scan and get reports for. I have installed ...
NathanExact's user avatar
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46 views

Ubuntu high processor utilization with no identifiable processes consuming processor [duplicate]

Ubuntu host with 100% utilization in top or htop. When I inspect the running processes, I don't see a process consuming a significant amount of CPU resources. I've tried using commands like top, htop, ...
wuyeguo's user avatar
0 votes
2 answers
41 views

How to wipe and completely reinstall all firmware on MikroTik router?

I have a brand new MikroTik router that behaves strangely out of the box (came with RouterOS version 7.11, upgraded to 7.14.1, default admin account disabled) - even when its configuration is ...
Regus Pregus's user avatar
1 vote
1 answer
169 views

Is there a tool like ClamAV to scan PHP and JS files?

We're offering a shared web hosting service, where many websites live on the same server. Since a lot of people don't update their stuff, they get pirated all the time. Now, the websites are ...
leftcursor's user avatar
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0 answers
29 views

Kill a malware process running in the background [duplicate]

I have a WordPress site sitting on a Docker container and which was infected by a malware. I noticed that when I try to remove the malware, it gets back again after a few seconds. When I run a process ...
James's user avatar
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0 answers
31 views

/usr/lib/sys/sysinit is it a virus [duplicate]

i have a little experince in managiing debian server. at the last few days i found a strange behaviour from my apache2 host web app in term of failer to upload files with "UPLOAD_ERR_NO_TMP_DIR: ...
mohalil's user avatar
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0 answers
43 views

Centos :: Can't delete file with "rm" under "/", operation is not permitted [duplicate]

I have a CentOS server.It has been hasked.There are some malicious file under "/", like "/11db32e5", the AV scanner say it is a "HackTool/Linux.CoinMiner.n". But i cannot ...
you_know_who's user avatar
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85 views

Cuckoo sandbox - Failure in AnalysisManager.run

I have cuckoo running on Debian 10 with an Ubuntu guest VM. I submit a file for analysis, it runs and says "reported" but the report loads a 404 page. I see the following on the cuckoo ...
Matt Morrow's user avatar
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29 views

Someone installed a cryptominer on my Ubuntu server [duplicate]

It seems someone gained access to my ubuntu server and installed a cryptominer. This user added a crontab for the user "git" on my server. I disconnected the server from the internet and I ...
Davidoffo's user avatar
-1 votes
1 answer
1k views

ClamAV detected Win.Virus.Expiro-10004389-0 malware on Ubuntu instance in Conda package

Today clamAV scanned my AWS instances and detect infected files on each. It looks like false positive due to several reasons: All these files are created in 2021 (why were they detected only now?) ...
Rougher's user avatar
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How to detect what is starting malicious processes on my server? [duplicate]

I recently noticed an exceptionally high outbound bandwidth from my Ubuntu 22.04 server. I saw a process with a random name (something like sdfgardfh) with a high CPU usage, and suspected that it ...
Erel Segal-Halevi's user avatar
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349 views

How to resolve infection SMW-INJ-15328-cron.bkdr.perl-3 found by ImunifyAv

I have a report of a malware infection from imunifyAv and this is all I'm given: SHELL="/usr/local/cpanel/bin/jailshell" */9 * * * * perl /var/tmp/CpUOSh >/dev/null 2>&1 Reason: ...
mediaguru's user avatar
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10 votes
4 answers
7k views

ClamAV detected Kaiji malware on Ubuntu instance

Today clamAV scanned my AWS instances and detect 24 infected files on each. It looks like false positive due to several reasons: All these files are created in October 2022 (why were they detected ...
Rougher's user avatar
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0 answers
100 views

How does pandora.x86 infect cloud servers?

We have a cloud server instance hosted at vultr. A previous instance at this provider has been infected by pandora.x86 a few weeks ago, causing 100% CPU load and over 1TB of traffic. (We believe it is ...
merlin's user avatar
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2 answers
52 views

Why not nuke an machine after malware cleanup? [closed]

So this is a noob question. Why do we perform a clean up on a machine that has been infected with malware and not nuke it directly instead? I understand that in some situations this would not be ...
mcry's user avatar
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0 answers
221 views

cyberscan.io: Do something against scanning?

I receive a lot of 404 from cyberscan.io: 34.159.13.2 - - [11/Aug/2022:17:32:18 +0200] "GET /cgi/en/index.html HTTP/1.1" 404 522 "-" "cyberscan.io" 34.159.13.2 - - [11/...
guettli's user avatar
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0 answers
22 views

Malware causing untraceable entries in apache2's error_log [duplicate]

My apache Server version: Apache/2.4.54 (Ubuntu) Server built: 2022-06-08T15:59:20 is configured as follows ErrorLog ${APACHE_LOG_DIR}/error.log ErrorLogFormat "[%t] [%l] [pid %P] %F: %E: [...
bilogic's user avatar
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0 answers
770 views

How to identify application that is generating ICMP echo requests on Windows 10?

My company security team has informed me that my workstation is pinging some "blacklisted" IP addresses. The enterprise security tool reporting this information sits in place of the usual ...
Gordon Mckeown's user avatar
0 votes
1 answer
307 views

Best practices for malware scanning on Ubuntu servers in production [closed]

There are multiple malware/rootkit scanning packages for ubuntu such as clamAV, rkhunter etc. I know how to use them manually but for multiple servers in production environment I could not find a ...
Niro's user avatar
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0 votes
1 answer
37 views

SPAM after activating WordPress plugin on Linux VPS

After activating a plugin I received an email that I had never recived before. What kind of miscellaneous code it might be? it's a coincidence? I received an email to my account Gmail that I never ...
phtshw's user avatar
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1 vote
0 answers
143 views

Noexec vs chmod -R -x for malware interogation?

I am setting up a Linux box to examine malware samples. I wanted to create a directory where I could safely unzip each sample and run very basic triage commands against the file to collect ...
Lexicon's user avatar
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0 votes
1 answer
1k views

Update From Debian 10 to Debian 11 Gone Wrong

I just upgrade from Debian 10 to Debian 11 using these instructions. Everything seems to have worked smoothly, except maldet is failing. This is the the error: maldet[2117]: maldet(2117): {mon} kernel ...
Maestro223's user avatar
0 votes
1 answer
599 views

Is there a (forensic) way to list past events/actions of a certain *.exe malware program (PUP-Proxygate, possibly a Trojan)?

There is a folder with suspicious *.exe files on a Win 10 PC, and there are (external) protocols of potentially unlawful actions coming from that PC at a certain time in the past. The first suspicious ...
David.P's user avatar
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0 votes
1 answer
300 views

Suspicious users with numbers are devouring entire CPU [duplicate]

On my test server which I have docker-run gitlab-ce, redis server and some other important services, I noticed I have an uninvited guest, kdevtmpfsi. I tried everything proposed by the community but I ...
Davood's user avatar
  • 101
2 votes
1 answer
999 views

Compromised printer?

Today the office printer produced three sheets with what seems to be random characters, and in the middle a string random1random2random3random4. This raised a red flag with us. Is this something to be ...
JohnBT's user avatar
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0 votes
2 answers
177 views

How to restrict access between folders on the same virtual host

We plan to host WordPress Blog and an Ecommerce store on the same domain, so the URL's will look like this: example.com <--- Magento Store example.com/blog/ <--- WordPress Blog Our main concern ...
Kelvin's user avatar
  • 173
-2 votes
1 answer
126 views

Hundreds of suspicious messages coming from random sources [closed]

I'm having a serious problem and I'm getting out of options. Out of the blue, my Windows 10 laptop with McAfee started reporting hundreds of suspicious messages blocked by the laptop firewall (I don't ...
ps0604's user avatar
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-5 votes
2 answers
157 views

Can I report malicious ip addresses for money?

My servers get attacks from thousands of ip addresses everyday. I have an idea. Can I report those malicious ip addresses, or use the resource to earn some money? How? You may think these attacks are ...
William's user avatar
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0 votes
1 answer
700 views

Cisco Umbrella Identifies DNS Request as Malicious and Looks Like it's From our Domain Controller

Our Cisco Umbrella service is identifying DNS requests to rev1.globalrootservers.net and rev2.globalrootservers.net as malicious. I am trying to figure out whether this is really a problem or if it is ...
user611054's user avatar
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0 answers
138 views

IS this error an Ancient “su – hostile” vulnerability in Debian 8 & 9 ? $ bash: cannot set terminal process group (-1): Inappropriate ioctl for device

Just received this error >> bash: cannot set terminal process group (-1): Inappropriate ioctl for device then the disk partition went into READ-Only mode ; also noticed gnome-software was ...
Marc Cox's user avatar
0 votes
1 answer
1k views

How does the Miner kinsing infects my system

I have - like few dozen others - the Miner kinsing in my deployment. Unlike the others I have an minimal server with no redis installed and also no cron. The only things I've installed is symfony, php-...
logg sar's user avatar
0 votes
1 answer
86 views

How to stop my server from bruteforcing another [duplicate]

There are so many resources on how to stop bruteforce attacks on your server, but I can't find any good on bruteforce attacks FROM a shared hosting server. I am getting a lot of reports from many ...
JoeRoot's user avatar
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0 votes
0 answers
136 views

license.php file is automatically getting created on shared hosting server

On my shared host, license.php file is automatically getting created at root folder/directory of every domain. I have find and deleted this file multiple times from everywhere. Here is the code of the ...
Nikunj Bhatt's user avatar
0 votes
0 answers
122 views

Is there a command to list all active maldet scans?

I relatively often run 2 or more scans on a server simultaneously (unfortunately some servers contain many users that manage to get their files infected simultaneously) and on many of those occasions ...
D.Bartenstein's user avatar
1 vote
0 answers
211 views

How to detect an executable/file calling out a domain

I'm trying to trace an application/file that is calling out a domain(URL). I ran Process Monitor & Wireshark to find SVCHost.exe is responsible. However, I'm unable to locate which file ...
Loki's user avatar
  • 11
0 votes
1 answer
883 views

Cleaning up after my Docker container got hit with the Kinsing malware

I have a VPS where I run an instance of devilbox, a dockerized LAMP stack. I just discovered that I got hit with the Kinsing malware, due most likely to a dockerized Redis server that I inadvertently ...
PaulJ's user avatar
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1 vote
1 answer
444 views

Infected server (bitcoin mining malware) [duplicate]

I found some strange process on my centos 8 machine check above photo: when I type cat /etc/passwd I don't see user 990 anywhere also this kinsing process is strange because this is the same process ...
Jack Duldi's user avatar
0 votes
1 answer
2k views

How to uninstall redis on Centos 8

How can i fully uninstall redis from my Centos 8 machine ? I have a malware that keeps getting in via redis 41533 redis 20 0 5883224 4.4g 2776 S 1593 13.9 13507:24 kdevtmpfsi
Jack Duldi's user avatar
3 votes
1 answer
2k views

Large Virus File with EICAR-Test-Signature not identified by the clamav library

If I add the Eicar Test Signature at the beginning of a large text file, will that file turn out to be malicious? I opened a 5 MB binary file on Sublime Text and added the signatue at the beginning. ...
Ashish Poddar's user avatar
0 votes
1 answer
1k views

How to avoid getting the crypto miner virus

I'm about to install a new ubuntu server after having this virus https://askubuntu.com/questions/1115770/crond64-tsm-virus-in-ubuntu . When installing the new VPS I'm going to install clamav and ...
Amos's user avatar
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2 votes
0 answers
97 views

Detecting .Money Ransomware on Windows Server 2019 [closed]

Problem A few weeks back we got hit with a Dharma Ransomware variant called "Money". We made the incorrect assumption that this variant began right at the time the user opened the malicious ...
Aaron's user avatar
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-1 votes
2 answers
2k views

Malware infection possible on Cisco switches?

Are there any malware that target Cisco switches? I recently got one from a friend whose company threw them out after a ransomware attack, and are wondering if there is anything to be concerned about. ...
Chris's user avatar
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0 votes
0 answers
13 views

Detect and clean nymaim on Ubuntu server? [duplicate]

I'm trying to figure out why our server has been block at Spamhaus. It comes up with: 139.162.208.xxx is listed in the XBL, because it appears in: CBL Lookup Following the link, it says: ...
Andrew Newby's user avatar
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1 vote
1 answer
102 views

Server infected by recent cryptojacking malware but different (?) entry point

One of my servers has been infected by this cryptojacking malware (reporting to the very same IP than in the article). It seems known for this malware to propagate through some Confluence ...
Skippy le Grand Gourou's user avatar
0 votes
0 answers
91 views

Can I use OSSEC in a home LAN to monitor for intrusion and malwares?

I'm not quite sure I understand what OSSEC does. But after HiddenWasp, I would like to make sure my Windows and Linux machines in my home are safe. (And harden my VPS) Does OSSEC support antimalware ...
HypeWolf's user avatar
  • 113
1 vote
1 answer
35 views

Using e-mail on malware infected computer/network [closed]

I have an important (+10 outlook accounts) but very ignorant client who refuses to accept that there is malware on the company's computers. Malware that steals Outlook data to send and receive spam. ...
André A.'s user avatar
0 votes
0 answers
103 views

Windows Defender Real Time Scan

Windows Defender would not detect in real time a new Malware hidden in a .zip file. If I scan the .zip file after it was downloaded from the website it does detect it and deletes it. Zip file is not ...
KCJ's user avatar
  • 11
0 votes
1 answer
47 views

discover additional scripts loaded from other sites when visiting a website with DNS

I noticed a (relatively) huge amount of dns packets in my wireshark recording while only visiting plain websites. Sites like amazon, facebook, comodoca and many others are requested by dns packets. So ...
BeldCode's user avatar
0 votes
0 answers
100 views

Monero hack survives reboot in linux [duplicate]

We recently had some servers hacked (Ubuntu, various flavours) which installed a Monero miner that starts a process called watchbog. We scrubbed them clean and blocked access to where they can update ...
Peter Hickman's user avatar
0 votes
2 answers
89 views

Unwanted emails are sent from some exchange users

In our exchange environment some unwanted emails are sent from a few users to abnormal addresses with .xyz suffix.They stuck in queue as the destination server isn't available. Affected users got ...
harsini's user avatar
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