Categories: Backdoor

How to remove “Backdoor.Win32.Tofsee.doxp”?

The Backdoor.Win32.Tofsee.doxp 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.Tofsee.doxp virus can do?

  • Executable code extraction
  • Injection (inter-process)
  • Injection (Process Hollowing)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Attempts to connect to a dead IP:Port (28 unique times)
  • Starts servers listening on 0.0.0.0:8579
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • Performs some HTTP requests
  • Unconventionial language used in binary resources: Ukrainian
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Enumerates services, possibly for anti-virtualization
  • Executed a process and injected code into it, probably while unpacking
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config
  • Installs itself for autorun at Windows startup
  • A possible cryptomining command was executed
  • Makes SMTP requests, possibly sending spam or exfiltrating data.
  • Attempts to interact with an Alternate Data Stream (ADS)
  • Anomalous binary characteristics

Related domains:

microsoft-com.mail.protection.outlook.com
181.86.68.138.dnsbl.sorbs.net
181.86.68.138.bl.spamcop.net
181.86.68.138.zen.spamhaus.org
181.86.68.138.sbl-xbl.spamhaus.org
181.86.68.138.cbl.abuseat.org
www.instagram.com
msr.pool-pay.com
app.snapchat.com
www.google.co.il
api.sendspace.com
www.google.ro
www.amazon.com
market.yandex.ru
www.google.fi
www.google.co.za
www.google.fr
www.google.de

How to determine Backdoor.Win32.Tofsee.doxp?


File Info:

crc32: E4285B25md5: 7035d632ff8b10f819929e6cac09cf19name: 7035D632FF8B10F819929E6CAC09CF19.mlwsha1: fd147614ee008c1daa3eece110ceff33ee15a188sha256: 92430a767afd2c33e7d5999d3238c03206bafde5b3e5f22b2bb53b7c6e1f659fsha512: 596b9b2f16b2f9ab77fac2101c72e598e263ef9988a9f818ae5d1a23c10d75cacde3a02de4de0ce75a9884e205ed86db6fb0306cb3eceb113894a5b64dc98ac7ssdeep: 3072:TRUTfdqqqcFNIxlAxRCUX1n/FdAPkLFDlZk2E:VIdfRGKRCUX1nTAPYJStype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

InternalSurname: debaukd.ekzeProd: 1.2.7FileVersions: 1.0.5.6LegalCo: Copyri (C) 2019, permudationzi

Backdoor.Win32.Tofsee.doxp also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.45234274
FireEye Generic.mg.7035d632ff8b10f8
McAfee GenericRXNE-RE!7035D632FF8B
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 005756611 )
BitDefender Trojan.GenericKD.45234274
K7GW Trojan ( 005756611 )
Cyren W32/Trojan.LYOS-0593
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:DropperX-gen [Drp]
Kaspersky Backdoor.Win32.Tofsee.doxp
Alibaba Backdoor:Win32/Tofsee.58ad244a
ViRobot Trojan.Win32.Z.Malpack.157696.A
AegisLab Trojan.Multi.Generic.4!c
Tencent Win32.Backdoor.Tofsee.Adub
Ad-Aware Trojan.GenericKD.45234274
Emsisoft Trojan.Crypt (A)
Comodo Malware@#g6h7da5r68n3
F-Secure Trojan.TR/Crypt.Agent.qetpp
DrWeb Trojan.Siggen11.56849
TrendMicro Backdoor.Win32.TOFSEE.USMANLU20
McAfee-GW-Edition BehavesLike.Win32.Trojan.cc
Sophos Mal/Generic-S
Ikarus Backdoor.Win32.Tofsee
Avira TR/Crypt.Agent.qetpp
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Zenpack.MU!MTB
Gridinsoft Trojan.Win32.Packed.oa
Arcabit Trojan.Generic.D2B23862
ZoneAlarm Backdoor.Win32.Tofsee.doxp
GData Trojan.GenericKD.45234274
Cynet Malicious (score: 100)
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34700.jmGfaG!Sssmc
ALYac Trojan.Glupteba.gen
VBA32 Trojan.Azorult
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.HILR
TrendMicro-HouseCall Backdoor.Win32.TOFSEE.USMANLU20
Rising Backdoor.Agent!8.C5D (TFE:5:IhzqwXEXQUL)
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_92%
Fortinet W32/Kryptik.HGHW!tr
Webroot W32.Trojan.Gen
AVG Win32:DropperX-gen [Drp]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Backdoor.8eb

How to remove Backdoor.Win32.Tofsee.doxp?

  • 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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