What To Use To Scan For Trojan?
Jun 2, 2009We have a client claming that she gets a Trojan warming when she trys to access her website but using the Trojan scan in cpanel doesn't show anything.
What can we use to scan for Trojan?
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How-to - Rootkit Scan (trojan Etc)
Jan 21, 2004What is a rootkit? The following link is a very good read to answer that question.
http://linux.oreillynet.com/pub/a/li...4/rootkit.html
In Summary, a rootkit is a trojan installed on your Linux server after someone has broken into it. These files are used to cover the hackers tracks, and to give the hacker tools to do more dirty work from your server.
Usage:
1. su - (change to root user)
2. mkdir /usr/local/chkrootkit
3. wget ftp://ftp.pangeia.com.br/pub/seg/pac/chkrootkit.tar.gz
4. tar -xvzf chkrootkit.tar.gz
5. cd chkrootkit*
6. cp * /usr/local/chkrootkit
7. cd /usr/local/chkrootkit
8. make sense
Now scan your system:
1. cd /usr/local/chkrootkit
2. ./chkrootkit
chkrootkit may from time to time give false positives. If you ever get a positive or "infected hit" scan a second time. If you do get a positive hit, google the hit to research the issue and steps to correct.
Part 2 - automated chkrootkit, and emailed results.
I'm lazy, and like my server to do the work for me so I have it scan every day, and email me the results.
Usage:
1. vi /etc/cron.daily/chkrootkit
2. add the following code.
Code:
#!/bin/bash
(cd /usr/local/chkrootkit; ./chkrootkit -q 2>&1 | mail -s "Daily chkrootkt scan" you@yourdomain.com)
3. chmod 0755 /etc/cron.daily/chkrootkit
This will email you@yourdomain.com every morning with your chkrootkit results. the -q option will only show you exploits.
Removal:
If you don't like getting the emails or just want to remove this from your server:
1. rm /etc/cron.daily/chkrootkit
2. rm -rf /usr/local/chkrootkit
All files will now be deleted from your server.
LKM Trojan?
Aug 20, 2007I just installed a fresh copy of centos 4.5, updated some programs and installed chkrootkit. When i run # ./chkproc, it shows the following output:
# ./chkproc
You have 14 process hidden for readdir command
You have 14 process hidden for ps command
Searching for LKM trojans shows the following output:
# ./chkrootkit -x lkm
EXE 9994: /usr/sbin/named
CWD 9995: /var/named
EXE 9995: /usr/sbin/named
CWD 9996: /var/named
EXE 9996: /usr/sbin/named
CWD 9997: /var/named
EXE 9997: /usr/sbin/named
CWD 9998: /var/named
EXE 9998: /usr/sbin/named
CWD 26293: /var/lib/mysql
EXE 26293: /usr/sbin/mysqld
CWD 26294: /var/lib/mysql
EXE 26294: /usr/sbin/mysqld
CWD 26295: /var/lib/mysql
EXE 26295: /usr/sbin/mysqld
CWD 26296: /var/lib/mysql
EXE 26296: /usr/sbin/mysqld
CWD 26297: /var/lib/mysql
EXE 26297: /usr/sbin/mysqld
CWD 26298: /var/lib/mysql
EXE 26298: /usr/sbin/mysqld
CWD 26299: /var/lib/mysql
EXE 26299: /usr/sbin/mysqld
CWD 26300: /var/lib/mysql
EXE 26300: /usr/sbin/mysqld
When i stop mysql and named, and run # ./chkrootkit -x lkm again, it doesn't show anything. When i turn mysql and named back on, it starts complaining about compromises again.
Can it be a false alarm, or should i really be worried? What do you advise me to do now?
Scan Virus On Sever?
Mar 2, 2007Is this possible we can scan virus on the account on server?
View 1 Replies View RelatedIn Rootkit Hunter Scan
Jun 26, 2009how to correct it?
Code:
---------------------- Start Rootkit Hunter Scan ----------------------
Warning: Checking for prerequisites [ Warning ]
The file of stored file properties (rkhunter.dat) does not exist, and so must be created. To do this type in 'rkhunter --propupd'.
Warning: WARNING! It is the users responsibility to ensure that when the '--propupd' option
is used, all the files on their system are known to be genuine, and installed from a
reliable source. The rkhunter '--check' option will compare the current file properties
against previously stored values, and report if any values differ. However, rkhunter
cannot determine what has caused the change, that is for the user to do.
One or more warnings have been found while checking the system.
Please check the log file (/var/log/rkhunter/rkhunter.log)
Advisable To Have Security Scan By Someone?
Jun 14, 2008Is it advisable to have someone scan your server setup, ie the firewall? If so, what is used to scan the firewall?
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May 4, 2008What's the best way to do a daily check for xss scripts injected into php and html files on a linux box?
I am referring to stuff like framer.z
[url]
which essentially has a telltail signature of
<script>eval(unescape("%77%69...
Is there anything for linux that keeps up with those kinds of script signatures?
I doubt CSF or Clam looks for that kind of stuff, right?
Security Updates/Scan For VPS
Oct 1, 2008to install secuity patches for each VPS hosted on single host or appling it to host running multiple VPS is enough.
Does same applies to firewall related software..Use it for individual VPS on single host?
How I Can Do Shell Scan In My Server
May 20, 2008i have server and i want to do shell scan and delete the shell
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Jul 1, 2009I just installed zen cart on my webhosting and after few days later i saw some file written like core1405.php and when i open to view the file it is actually trojan c99shell.
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15 POSSIBLE Trojan Detected WHM
Aug 3, 2007i have an site on my server when i open it the kaspersky anti viruss detect there is an trojan in this site .. ( see the picture in the attachment )
and i checked the server from the whm and there is result 15 POSSIBLE Trojans Detected
How i can solve this ?? and remove this trojans .
Trojan :: 687 POSSIBLE Trojans?
Mar 21, 2008I just ran a scan for trojan horses in WHM and it came up with "687 POSSIBLE Trojans". WTH? Are these real trojan horses? If so, how do I remove them?
View 2 Replies View RelatedPHP.Backdoor.Trojan
Apr 29, 2008As usually I do monthly scan to all files on my site,today I download all backup site into my PC,then scanning them using Norton Antivirus and on one site files Norton detected PHP.Backdoor.Trojan.
I take a look file location and found current file with name xTgsj78Jn.txt
Then I go to my server where site hosted,and i go to the directory and found file above stay on there,I try many time to delete it but always get an error message "Permission denied",I try to change permission but always returned an error.
When deleted it i use command rm -r with root access,then I do ls -l and found details file like below.
-rwxrwxrwx 1 nobody nobody 137787 Mar 19 20:14 xTgsj78Jn.txt*
Please help me to delete this file.
FYI this file uploaded to my hosting file site.
Free Server Securiy Scan
Dec 14, 2008Any body knows of free server security scan for my dedicated?
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Apr 14, 2007[url]
[url]
One of my users posted this in the forum saying my server is scanning his computer. His this serious? Do I have virus? Should i be worried? Well i am kinda worried. I tried googling it, but i can't seem to figure the right keywords for a good result.
Trojan :: How To Clean Server?
Aug 7, 2007my whm Trojan scanner found 23 possible Trojans.
how can i clean my server?
Trojan-Downloader.JS.Psyme.hz
Aug 12, 2007I have an hosting account at OXEO.com and I have trojan problems on all my websites
The index files of all my websites show a Trojan program called Trojan-Downloader.JS.Psyme.hz
I checked my websites on Google and Google is warning users for this kind of problems for one of my websites
Does anybody here has experienced the same problem?
Possible Trojan List By WHM - Do I Need To Worry?
Nov 8, 2007I ran the Trojan scan in WHM and it came up with the list below. I have a strong feeling WHM is mis-reporting these as trojans, but I thought I would ask the experts here:
Scan for Trojan Horses
Appears Clean
/dev/stderr
Scanning for Trojan Horses.....
Possible Trojan - /usr/bin/cpan
Possible Trojan - /usr/bin/instmodsh
Possible Trojan - /usr/bin/prove
Possible Trojan - /usr/bin/xmlcatalog
Possible Trojan - /usr/bin/xmllint
Possible Trojan - /usr/bin/xml2-config
Possible Trojan - /usr/lib/libxml2.la
Possible Trojan - /usr/bin/mysqlhotcopy
Possible Trojan - /usr/bin/Wand-config
Possible Trojan - /usr/bin/animate
Possible Trojan - /usr/bin/compare
Possible Trojan - /usr/bin/composite
Possible Trojan - /usr/bin/conjure
Possible Trojan - /usr/bin/convert
Possible Trojan - /usr/bin/display
Possible Trojan - /usr/bin/identify
Possible Trojan - /usr/bin/import
Possible Trojan - /usr/bin/mogrify
Possible Trojan - /usr/bin/montage
Possible Trojan - /usr/bin/curl-config
Possible Trojan - /usr/bin/curl
Possible Trojan - /usr/lib/libcurl.so.3.0.0
Possible Trojan - /usr/lib/python2.3/site-packages/libxml2mod.la
Possible Trojan - /usr/lib/python2.3/site-packages/libxml2mod.so
Possible Trojan - /usr/sbin/pureauth
25 POSSIBLE Trojans Detected
Is there anything that looks fishy here?
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Dec 7, 2008how can I remove a Virus/Trojan from my website?
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Websites Infected With Trojan How To Solve?
Nov 16, 2008i see my websites are infected with some trojan.
there are some iframe tag simlilar to this in all index files
<iframe src="http://traff<<removed>>.cn/in.cgi?27" width=100 height=80></iframe>
any idea how might this iframe inserted in my codes.
i have tried to format my systems and remove all saved ftp passwords , but still this virus is comming back and the strange thing is i have website on different servers infected with same virus
any idea how this is happened and how to avoide this?
Trojan-Downloader.JS.Psyme.hz Remover
Aug 3, 2007can any body help me with the Trojan-Downloader.JS.Psyme.hz remover?
i can't find an remover for linux server for this trojan.
Trojan-Clicker.HTML.IFrame.amh
Nov 6, 2009I am not that technically proficient so I have to resort to shared hosting solutions...I am currently with Bluehost.
Problem: I have a small site with minimal needs in terms of storage and bandwidth, but the site is controversial and gets hacked and attacked a lot.
I need a shared hosting provider which ranks higher than most in terms of security.
Recently the site was attacked such that any user going to the site was infected with Trojan horse viruses.
Donno if it's useful or not but here are the files from my PC antivirus which was infected when I went to the site with IE:
File generated by Rogers Online Protection Anti-Virus
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5PG8E0SM0gifimg[1].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:25 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5GC9JZWI3gifimg[2].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:27 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5QBPA1ELgifimg[1].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:27 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE56SLECSUQgifimg[5].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:28 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5EKTEAS82gifimg[5].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:28 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5P5098OY4gifimg[4].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:29 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE5IPGNWAB0gifimg[1].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:30 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE55VT8B104gifimg[1].htm Trojan-Clicker.HTML.IFrame.amh
Deleted 11/5/2009 12:21:30 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE543XUDX83gifimg[2].htm Trojan-Clicker.HTML.IFrame.amh
Quarantined 11/5/2009 12:21:31 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
FilesContent.IE56SLECSUQgifimg[5].htm Trojan-Clicker.HTML.IFrame.amh
Quarantined 11/5/2009 12:22:18 AM
C:Documents and SettingsuserLocal SettingsTemporary Internet
Trojan-Clicker.HTML.Iframe.g In My Website? What Is This??
Sep 4, 2007I have a website and all works fine, but an user said me that uses kaspersky said me my website has an trojan i don't understand how this is possible, and i'l really worried.
the trojan that appears to my user is:
Trojan-Clicker.HTML.Iframe.g
someone know why i have this trojan?
Now the users refuses to open my website!! i'm more than worried
this is an printscreen of the error: ...
Trojan Detected On Initial Load Of Site
Jan 8, 2008I have 2 reseller accounts with one provider, and in the last several days I have noticed that when you visit the site for the first time, my AV software detects a trojan on the site, but the code & html files are 100% clean!
I'm suspecting that there is something being injected into the scripts from the server daemons that's either running or something else.
Anyone have any suggestions?