1. What is Trojan.Win32.Qhost?
Trojan.Win32.Qhost modifies Windows host file, thus forbidding user to access well known virus protection websites, because the hosts file is used to map IP addresses to host names.
Hosts file location (XP, 2000, NT systems): %System%\drivers\etc\hosts.
Hosts file location (9X systems): %Windows%\hosts.
Virus database update service cannot be accessed as well, so your anti-virus software is not able to update. Trojan.Win32.Qhost is a risky trojan and should be removed immediately to keep your anti-virus program work properly.
Hosts file location (XP, 2000, NT systems): %System%\drivers\etc\hosts.
Hosts file location (9X systems): %Windows%\hosts.
Virus database update service cannot be accessed as well, so your anti-virus software is not able to update. Trojan.Win32.Qhost is a risky trojan and should be removed immediately to keep your anti-virus program work properly.
2. How to remove Trojan.Win32.Qhost:
- Internet connection might be disabled or Internet browser might be blocked by Trojan.Win32.Qhost, so it won't be possible to download any files to infected computer. In this case please download all files required for Trojan.Win32.Qhost removal to another computer and then transfer them on the infected one using CD/DVD or USB flash drive.
- To remove Trojan.Win32.Qhost download Spyware Doctor and install the program (for the installation guide click here). Before installation, make sure all other programs and windows are closed.
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After the installation, computer scan should be started automatically. If so, please move to the next step. If not, click "Status" on the left side menu and press "Scan Now" button to run computer scanner as shown in the picture below:
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After the scan has been completed and scan results have been generated, press "Fix Checked" button to remove Trojan.Win32.Qhost.
- Restart the computer to complete Trojan.Win32.Qhost removal procedure.
3. Hijackthis entries:
O1 Entries |
O1 - Hosts: 102.106.104.21 symantec.comsecurityresponse.symantec.com |
O1 - Hosts: 228.250.229.157 www.symantec.comsecurityresponse.symantec.com |
O1 - Hosts: 29.187.72.218 pandasoftware.com |
O1 - Hosts: 97.5.250.241 www.pandasoftware.com |
O1 - Hosts: 138.82.87.6 sophos.com |
O1 - Hosts: 35.58.179.154 www.sophos.com |
O1 - Hosts: 208.162.154.24 mcafee.com |
O1 - Hosts: 233.48.92.170 www.mcafee.com |
O1 - Hosts: 105.2.201.81 downloads-us1.kaspersky-labs.com |
O1 - Hosts: 7.159.58.53 www.downloads-us1.kaspersky-labs.com |
O1 - Hosts: 162.45.209.58 updates1.kaspersky-labs.com |
O1 - Hosts: 226.229.1.211 www.updates1.kaspersky-labs.com |
O1 - Hosts: 29.197.80.27 updates2.kaspersky-labs.com |
O1 - Hosts: 119.132.91.34 www.updates2.kaspersky-labs.com |
O1 - Hosts: 78.203.27.132 updates3.kaspersky-labs.com |
O1 - Hosts: 213.162.104.65 www.updates3.kaspersky-labs.com |
O1 - Hosts: 254.41.187.200 updates4.kaspersky-labs.com |
O1 - Hosts: 158.136.56.85 www.updates4.kaspersky-labs.com |
O1 - Hosts: 204.40.236.125 updates5.kaspersky-labs.com |
O1 - Hosts: 137.36.83.8 www.updates5.kaspersky-labs.com |
O1 - Hosts: 167.250.29.254 downloads1.kaspersky-labs.com |
O1 - Hosts: 227.135.49.4 www.downloads1.kaspersky-labs.com |
O1 - Hosts: 85.50.243.233 downloads2.kaspersky-labs.com |
O1 - Hosts: 239.71.197.162 downloads3.kaspersky-labs.com |
O1 - Hosts: 240.157.232.165 www.downloads3.kaspersky-labs.com |
O1 - Hosts: 98.20.33.206 downloads4.kaspersky-labs.com |
O1 - Hosts: 158.168.248.53 www.downloads4.kaspersky-labs.com |
O1 - Hosts: 239.91.70.216 downloads5.kaspersky-labs.com |
O1 - Hosts: 175.41.61.235 www.downloads5.kaspersky-labs.com |
O1 - Hosts: 172.61.168.111 ftp.downloads1.kaspersky-labs.com |
O1 - Hosts: 209.101.116.6 www.ftp.downloads1.kaspersky-labs.com |
O1 - Hosts: 2.196.112.6 ftp.downloads2.kaspersky-labs.com |
O1 - Hosts: 71.199.81.204 www.ftp.downloads2.kaspersky-labs.com |
O1 - Hosts: 45.90.249.83 ftp.downloads3.kaspersky-labs.com |
O1 - Hosts: 105.91.249.5 www.ftp.downloads3.kaspersky-labs.com |
O1 - Hosts: 191.78.84.208 ftp.downloads4.kaspersky-labs.com |
O1 - Hosts: 34.83.134.125 www.ftp.downloads4.kaspersky-labs.com |
O1 - Hosts: 29.86.196.61 ftp.downloads5.kaspersky-labs.com |
O1 - Hosts: 113.134.134.133 www.ftp.downloads5.kaspersky-labs.com |
O1 - Hosts: 0.8.67.28 dnl-us3.kaspersky-labs.com |
O1 - Hosts: 233.236.123.115 www.dnl-us3.kaspersky-labs.com |
O1 - Hosts: 245.96.251.52 dnl-us4.kaspersky-labs.com |
O1 - Hosts: 50.35.93.29 www.dnl-us4.kaspersky-labs.com |
O1 - Hosts: 221.61.206.15 dnl-us5.kaspersky-labs.com |
O1 - Hosts: 133.238.20.98 www.dnl-us5.kaspersky-labs.com |
O1 - Hosts: 110.228.207.124 dnl-us6.kaspersky-labs.com |
O1 - Hosts: 52.176.254.162 www.dnl-us6.kaspersky-labs.com |
O1 - Hosts: 176.123.198.13 dnl-us7.kaspersky-labs.com |
O1 - Hosts: 31.245.111.65 www.dnl-us7.kaspersky-labs.com |
O1 - Hosts: 129.143.176.154 dnl-us8.kaspersky-labs.com |
O1 - Hosts: 64.234.44.40 www.dnl-us8.kaspersky-labs.com |
O1 - Hosts: 18.143.60.189 kaspersky.ru |
O1 - Hosts: 32.224.239.67 www.kaspersky.ru |
O1 - Hosts: 104.79.79.83 msk1.drweb.com |
O1 - Hosts: 96.205.230.4 www.msk1.drweb.com |
O1 - Hosts: 220.133.129.1 msk2.drweb.com |
O1 - Hosts: 49.203.52.223 www.msk2.drweb.com |
O1 - Hosts: 155.79.158.173 msk3.drweb.com |
O1 - Hosts: 220.151.110.204 www.msk3.drweb.com |
O1 - Hosts: 38.172.38.1 msk4.drweb.com |
O1 - Hosts: 59.19.32.200 www.msk4.drweb.com |
O1 - Hosts: 211.254.206.235 boss.drweb.comdrweb.com |
O1 - Hosts: 62.196.69.84 www.boss.drweb.comdrweb.com |
O1 - Hosts: 74.143.253.31 liveupdate.symantecliveupdate.com |
O1 - Hosts: 103.84.210.244 www.liveupdate.symantecliveupdate.com |
O1 - Hosts: 9.9.79.148 viruslist.com |
O1 - Hosts: 78.18.44.177 www.viruslist.com |
O1 - Hosts: 225.252.21.3 security.symantec.com |
O1 - Hosts: 30.109.174.152 www.security.symantec.com |
O1 - Hosts: 119.91.211.108 f-secure.com |
O1 - Hosts: 22.125.36.57 www.f-secure.com |
O1 - Hosts: 195.255.193.144 kaspersky-labs.com |
O1 - Hosts: 9.122.82.41 www.kaspersky-labs.com |
O1 - Hosts: 148.35.75.120 kaspersky.com |
O1 - Hosts: 222.67.110.128 www.kaspersky.com |
O1 - Hosts: 11.231.145.236 avp.com |
O1 - Hosts: 17.216.161.92 www.avp.com |
O1 - Hosts: 27.205.231.253 norman.com |
O1 - Hosts: 48.224.138.92 www.norman.com |
O1 - Hosts: 15.63.85.124 sandbox.norman.com |
O1 - Hosts: 94.36.187.38 www.sandbox.norman.com |
O1 - Hosts: 4.7.24.128 networkassociates.com |
O1 - Hosts: 212.18.58.225 www.networkassociates.com |
O1 - Hosts: 107.213.32.228 ca.com |
O1 - Hosts: 91.59.1.187 www.ca.com |
O1 - Hosts: 137.188.145.198 mast.mcafee.com |
O1 - Hosts: 211.213.127.100 www.mast.mcafee.com |
O1 - Hosts: 246.181.66.10 my-etrust.com |
O1 - Hosts: 175.58.21.146 www.my-etrust.com |
O1 - Hosts: 33.27.64.213 download.mcafee.com |
O1 - Hosts: 119.103.154.123 www.download.mcafee.com |
O1 - Hosts: 202.46.76.18 dispatch.mcafee.com |
O1 - Hosts: 69.125.215.94 www.dispatch.mcafee.com |
O1 - Hosts: 135.144.89.240 secure.nai.com |
O1 - Hosts: 72.68.12.250 www.secure.nai.com |
O1 - Hosts: 64.203.15.98 nai.com |
O1 - Hosts: 68.163.105.21 www.nai.com |
O1 - Hosts: 179.201.75.158 update.symantec.com |
O1 - Hosts: 16.42.149.247 www.update.symantec.com |
O1 - Hosts: 240.90.156.159 updates.symantec.com |
O1 - Hosts: 23.136.42.236 www.updates.symantec.com |