Categories: Backdoor

How to remove “Backdoor:HTML/Derflop.A”?

The Backdoor:HTML/Derflop.A is considered dangerous by lots of security experts. When this infection is active, you may notice unwanted processes in Task Manager list. In this case, it is adviced to scan your computer with GridinSoft Anti-Malware.

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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Backdoor:HTML/Derflop.A virus can do?

  • Injection (inter-process)
  • Injection with CreateRemoteThread in a remote process
  • Uses Windows utilities for basic functionality
  • A potential decoy document was displayed to the user
  • Network activity detected but not expressed in API logs

Related domains:

z.whorecord.xyz
a.tomx.xyz

How to determine Backdoor:HTML/Derflop.A?


File Info:

crc32: A2DFDE65md5: 3154a07e8b1e4edb647ffe485319da11name: upload_filesha1: 97c4243879441240c756a146d90f9292a6582a61sha256: 2339abcb78c46bf6ccdfce533b163d724bffbf8906dde3531706b1ffb301f143sha512: ffbde43815964bed67a177f0d40f0605b6073b5beb4dfc39ef4923dfd2743279214d4283ee51a7569ba46cb77f6cda1348a23ed1c6c46a8ccf114d4685bac673ssdeep: 384:g6Ioq47z2YEERHBL+B4z6JdfB7SevtTJJJ2JJJ2efveSPN788T:VIoq47z2YEMHBL+7XDPiZ3type: Perl script, UTF-8 Unicode text executable, with very long lines

Version Info:

0: [No Data]

Backdoor:HTML/Derflop.A also known as:

ClamAV Win.Trojan.IRCBot-785
CAT-QuickHeal PERL/IRCbot.gen
McAfee Perl/ShellBot
VIPRE Backdoor.Perl.IRCBot.a (v)
AegisLab Trojan.Perl.IRCBot.m!c
Sangfor Malware
Symantec Perl.Pircbot
ESET-NOD32 Perl/IRCBot.NAT
Baidu Perl.Backdoor.Shellbot.f
TrendMicro-HouseCall PERL_SHELLBOT.SM
Avast Perl:Shellbot-O [Trj]
Kaspersky Backdoor.Perl.IRCBot.ml
BitDefender Backdoor.Perl.Shellbot.F
NANO-Antivirus Trojan.Script.Shellbot.dnqthd
MicroWorld-eScan Backdoor.Perl.Shellbot.F
Tencent Perl.Backdoor.Ircbot.Lhdc
Ad-Aware Backdoor.Perl.Shellbot.F
Emsisoft Backdoor.Perl.Shellbot.F (B)
Comodo .UnclassifiedMalware@0
DrWeb Perl.Ircbot.99
TrendMicro PERL_SHELLBOT.SM
FireEye Backdoor.Perl.Shellbot.F
Sophos Mal/PerlBot-A
Microsoft Backdoor:HTML/Derflop.A
Arcabit Backdoor.Perl.Shellbot.F
ZoneAlarm Backdoor.Perl.IRCBot.ml
GData Backdoor.Perl.Shellbot.F
AhnLab-V3 Shellbot/Perl.Generic.S1100
ALYac Backdoor.Perl.Shellbot.F
MAX malware (ai score=100)
Rising Trojan.Shellbot!1.A3B4 (CLASSIC)
Ikarus Trojan.Perl.Shellbot
Fortinet Perl/IRCBot.I!tr
AVG Perl:Shellbot-O [Trj]

How to remove Backdoor:HTML/Derflop.A?

  • Download and install GridinSoft Anti-Malware.
  • Open GridinSoft Anti-Malware and perform a “Standard scan“.
  • Move to quarantine” all items.
  • Open “Tools” tab – Press “Reset Browser Settings“.
  • Select proper browser and options – Click “Reset”.
  • Restart your computer.
Paul Valéry

I'm a cyber security analyst and data science expert with 5+ years of experience with security software contractors.

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