Categories: Backdoor

Should I remove “Backdoor.Win32.Tofsee.doyd”?

The Backdoor.Win32.Tofsee.doyd 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.doyd 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 (14 unique times)
  • Starts servers listening on 0.0.0.0:3432
  • 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
  • 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
msr.pool-pay.com
www.amazon.com
iv0001-npxs01001-00.auth.np.ac.playstation.net
www.instagram.com

How to determine Backdoor.Win32.Tofsee.doyd?


File Info:

crc32: 949D8C02md5: 101545b9e4fa8b9a591076c1682ba592name: 101545B9E4FA8B9A591076C1682BA592.mlwsha1: 38f0d71259af45e02137b79e2191278877817837sha256: 4c5f890456f92dea07ec837c0c53719f9d143cd050a9bff6e3f5149a9837bf28sha512: 67bb8c39a37efde6179fdf8da5210d361e9722a135bfde8ffa9d5958ce82f660c3dacb04e0c8d3fb9a90ddc3a937ffbc66ca94f3a86e26dce9e0806dd6781579ssdeep: 3072:S5UsBd4O12xTXku9B9z8T9HNLf+r1rGs/VOoc:Inn7sTXku9Bkt7cXttype: 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.doyd also known as:

Elastic malicious (high confidence)
DrWeb Trojan.Siggen11.56849
MicroWorld-eScan Trojan.GenericKDZ.72285
FireEye Generic.mg.101545b9e4fa8b9a
Cylance Unsafe
K7AntiVirus Trojan ( 005756611 )
K7GW Trojan ( 005756611 )
BitDefenderTheta Gen:NN.ZexaF.34700.jmGfaadnefdc
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.HILR
APEX Malicious
Kaspersky Backdoor.Win32.Tofsee.doyd
BitDefender Trojan.GenericKDZ.72285
Ad-Aware Trojan.GenericKDZ.72285
McAfee-GW-Edition BehavesLike.Win32.Trojan.cc
Emsisoft Trojan.GenericKDZ.72285 (B)
GData Trojan.GenericKDZ.72285
Arcabit Trojan.Generic.D11A5D
ZoneAlarm Backdoor.Win32.Tofsee.doyd
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Glupteba.R361365
Acronis suspicious
McAfee Artemis!101545B9E4FA
MAX malware (ai score=82)
Malwarebytes Trojan.MalPack.GS
Rising Backdoor.Agent!8.C5D (TFE:5:IhzqwXEXQUL)
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.HGHW!tr
AVG Win32:DropperX-gen [Drp]
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Backdoor.591

How to remove Backdoor.Win32.Tofsee.doyd?

  • 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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