Categories: Backdoor

What is “Backdoor:Win32/Htbot.B”?

The Backdoor:Win32/Htbot.B 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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What Backdoor:Win32/Htbot.B virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Uses Windows utilities for basic functionality
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Authenticode signature is invalid
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Yara rule detections observed from a process memory dump/dropped files/CAPE

How to determine Backdoor:Win32/Htbot.B?


File Info:

name: A64F21D7BC4F4D3D680B.mlwpath: /opt/CAPEv2/storage/binaries/f1485e53403de8c654783ce3e0adf754639542e41c2a89b92843ce8ecdeb4646crc32: 9D40B7A3md5: a64f21d7bc4f4d3d680b3bf4cf8f7d3fsha1: 75233e60a52d548b27f9a4ea19b75d2a9852f073sha256: f1485e53403de8c654783ce3e0adf754639542e41c2a89b92843ce8ecdeb4646sha512: 71fabd805e6e2e8fa390bacb5809e1512e7f7e68ce52a758983e9d57d79b18efab6ed16d0f00ec2fd4d1f7d2428cc94c59715ffcec318b7519888250162ece59ssdeep: 3072:CKNiJfZW1fV/QUWrZD12mYFqegKvXJ61/mVWhLgBiK7IOShegz:pQJfZW1fV/QUWlDwDFnvsWrM+Utype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T12B149E37F73088F2C127C9F45AB8E90D2825C921162796CB698C77DB0B7639B97D0762sha3_384: 3e805d4c4f7043fb074d5badb2be00dd70191bb7f1156f3cecf54b9ff1f6f3fc276b5b79b85d70a82e520a08c6f0c1eeep_bytes: e8362d0000e989feffffc7019c624200timestamp: 2015-08-13 19:30:35

Version Info:

CompanyName: Microsoft CorporationFileDescription: Self-Extracting CabinetFileVersion: 6.3.0015.0InternalName: SFXCAB.EXELegalCopyright: © Microsoft Corporation. All rights reserved.OriginalFilename: SFXCAB.EXEProductName: Microsoft® Windows® Operating SystemProductVersion: 6.3.0015.0Translation: 0x0409 0x04b0

Backdoor:Win32/Htbot.B also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Foreign.j!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Generic.34160694
FireEye Generic.mg.a64f21d7bc4f4d3d
CAT-QuickHeal Trojan.Generic.B4
McAfee RDN/Generic BackDoor
Cylance unsafe
Zillya Trojan.Foreign.Win32.53546
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 0055dd191 )
Alibaba Ransom:Win32/Foreign.133f84cd
K7GW Trojan ( 0055dd191 )
CrowdStrike win/malicious_confidence_100% (W)
Symantec Backdoor.Proxyback
tehtris Generic.Malware
ESET-NOD32 a variant of Win32/Kryptik.DTOO
APEX Malicious
Cynet Malicious (score: 99)
Kaspersky Trojan-Ransom.Win32.Foreign.oczp
BitDefender Trojan.Generic.34160694
NANO-Antivirus Trojan.Win32.RiskGen.dvkegd
Avast Win32:Malware-gen
TACHYON Ransom/W32.Foreign.202240
Emsisoft Trojan.Generic.34160694 (B)
F-Secure Heuristic.HEUR/AGEN.1323718
DrWeb BackDoor.Htbot.6
VIPRE Trojan.Generic.34160694
TrendMicro BKDR_HTBOT.AD
McAfee-GW-Edition BehavesLike.Win32.Generic.ch
Trapmine malicious.high.ml.score
Sophos Mal/Generic-S
SentinelOne Static AI – Suspicious PE
GData Trojan.Generic.34160694
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1323718
Antiy-AVL Trojan[Ransom]/Win32.Foreign
Kingsoft malware.kb.a.988
Xcitium Malware@#2c9t9az3u76xj
Arcabit Trojan.Generic.D2094036
ViRobot Backdoor.Win32.ProxyBack.202240
ZoneAlarm Trojan-Ransom.Win32.Foreign.oczp
Microsoft Backdoor:Win32/Htbot.B
Google Detected
AhnLab-V3 Trojan/Win32.Gen
ALYac Trojan.Generic.34160694
MAX malware (ai score=100)
VBA32 BScope.Backdoor.Htbot
Malwarebytes Crypt.Trojan.Malicious.DDS
Panda Trj/Genetic.gen
TrendMicro-HouseCall BKDR_HTBOT.AD
Rising Trojan.Generic@AI.92 (RDML:eYsIvdCaqNrD4JnCxdo1Gw)
Yandex Trojan.Foreign!ozhn78QAwCw
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.EJXP!tr
AVG Win32:Malware-gen
Cybereason malicious.0a52d5
DeepInstinct MALICIOUS

How to remove Backdoor:Win32/Htbot.B?

  • 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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