Categories: Backdoor

Backdoor.Win32.Tofsee.dowh removal instruction

The Backdoor.Win32.Tofsee.dowh 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.dowh 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 (17 unique times)
  • Starts servers listening on 0.0.0.0:5366
  • 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:

z.whorecord.xyz
a.tomx.xyz
microsoft-com.mail.protection.outlook.com
0.0.0.0.dnsbl.sorbs.net
0.0.0.0.bl.spamcop.net
0.0.0.0.zen.spamhaus.org
0.0.0.0.sbl-xbl.spamhaus.org
0.0.0.0.cbl.abuseat.org
www.instagram.com
msr.pool-pay.com
www.amazon.com

How to determine Backdoor.Win32.Tofsee.dowh?


File Info:

crc32: 6B48B34Cmd5: bab3b82e0d7ad360dde30caaf1a537daname: BAB3B82E0D7AD360DDE30CAAF1A537DA.mlwsha1: 2a23e3d756079ad005c5b47a88b5a27547ce615fsha256: 01b0e851bebc1211aecf9fb896062ce0563a5a1be118df7cdfc08805a665783csha512: a318f1587cab9c11a300aabb416bb8e9d31f954e09e5b0d02f4cc4cb56eede06ac41edf6cd741647681311003e684bbbbd148fb0bc6a1bd726ddf1231b58f194ssdeep: 3072:aWe2ZwIqj4+VQrsBpeyN+4ICyKskxucIR7qGxuIA3P8dwfVk:ddwBV2s3dKKsk8BR7TxuP8dwfVtype: 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, permudationz

Backdoor.Win32.Tofsee.dowh also known as:

Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.35907864
FireEye Generic.mg.bab3b82e0d7ad360
McAfee RDN/Generic.grp
Cylance Unsafe
Sangfor Malware
K7AntiVirus Trojan ( 005756061 )
BitDefender Trojan.GenericKD.35907864
K7GW Trojan ( 005756061 )
Cyren W32/Kryptik.CVF.gen!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky Backdoor.Win32.Tofsee.dowh
Alibaba Backdoor:Win32/Tofsee.2234b9bc
AegisLab Trojan.Multi.Generic.4!c
Ad-Aware Trojan.GenericKD.35907864
Sophos Mal/Generic-S
F-Secure Trojan.TR/Crypt.Agent.pjzii
DrWeb Trojan.PWS.Siggen2.60676
McAfee-GW-Edition BehavesLike.Win32.Trojan.cc
Emsisoft Trojan.GenericKD.35907864 (B)
SentinelOne Static AI – Malicious PE
Avira TR/Crypt.Agent.pjzii
MAX malware (ai score=84)
Microsoft Trojan:Win32/Zenpack.MT!MTB
Gridinsoft Trojan.Win32.Packed.oa
Arcabit Trojan.Generic.D223E918
ZoneAlarm Backdoor.Win32.Tofsee.dowh
GData Trojan.GenericKD.35907864
Cynet Malicious (score: 100)
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34700.kmGfa0wxFgdc
ALYac Trojan.GenericKD.35907864
VBA32 Trojan.Agent
Malwarebytes Trojan.MalPack.GS
Panda Trj/CI.A
ESET-NOD32 a variant of Win32/Kryptik.HILR
Ikarus Trojan.Win32.Crypt
eGambit Unsafe.AI_Score_83%
Fortinet W32/Kryptik.HGHW!tr
Webroot W32.Trojan.Gen
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Generic/HEUR/QVM11.1.3C27.Malware.Gen

How to remove Backdoor.Win32.Tofsee.dowh?

  • 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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