Backdoor

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

Malware Removal

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.

GridinSoft Anti-Malware

Gridinsoft Anti-Malware

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: A2DFDE65
md5: 3154a07e8b1e4edb647ffe485319da11
name: upload_file
sha1: 97c4243879441240c756a146d90f9292a6582a61
sha256: 2339abcb78c46bf6ccdfce533b163d724bffbf8906dde3531706b1ffb301f143
sha512: ffbde43815964bed67a177f0d40f0605b6073b5beb4dfc39ef4923dfd2743279214d4283ee51a7569ba46cb77f6cda1348a23ed1c6c46a8ccf114d4685bac673
ssdeep: 384:g6Ioq47z2YEERHBL+B4z6JdfB7SevtTJJJ2JJJ2efveSPN788T:VIoq47z2YEMHBL+7XDPiZ3
type: Perl script, UTF-8 Unicode text executable, with very long lines

Version Info:

0: [No Data]

Backdoor:HTML/Derflop.A also known as:

ClamAVWin.Trojan.IRCBot-785
CAT-QuickHealPERL/IRCbot.gen
McAfeePerl/ShellBot
VIPREBackdoor.Perl.IRCBot.a (v)
AegisLabTrojan.Perl.IRCBot.m!c
SangforMalware
SymantecPerl.Pircbot
ESET-NOD32Perl/IRCBot.NAT
BaiduPerl.Backdoor.Shellbot.f
TrendMicro-HouseCallPERL_SHELLBOT.SM
AvastPerl:Shellbot-O [Trj]
KasperskyBackdoor.Perl.IRCBot.ml
BitDefenderBackdoor.Perl.Shellbot.F
NANO-AntivirusTrojan.Script.Shellbot.dnqthd
MicroWorld-eScanBackdoor.Perl.Shellbot.F
TencentPerl.Backdoor.Ircbot.Lhdc
Ad-AwareBackdoor.Perl.Shellbot.F
EmsisoftBackdoor.Perl.Shellbot.F (B)
Comodo.UnclassifiedMalware@0
DrWebPerl.Ircbot.99
TrendMicroPERL_SHELLBOT.SM
FireEyeBackdoor.Perl.Shellbot.F
SophosMal/PerlBot-A
MicrosoftBackdoor:HTML/Derflop.A
ArcabitBackdoor.Perl.Shellbot.F
ZoneAlarmBackdoor.Perl.IRCBot.ml
GDataBackdoor.Perl.Shellbot.F
AhnLab-V3Shellbot/Perl.Generic.S1100
ALYacBackdoor.Perl.Shellbot.F
MAXmalware (ai score=100)
RisingTrojan.Shellbot!1.A3B4 (CLASSIC)
IkarusTrojan.Perl.Shellbot
FortinetPerl/IRCBot.I!tr
AVGPerl:Shellbot-O [Trj]

How to remove Backdoor:HTML/Derflop.A?

Backdoor:HTML/Derflop.A removal tool
  • 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.

About the author

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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