Categories: Malware

Should I remove “Win32/Tofsee.AV”?

The Win32/Tofsee.AV 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 Win32/Tofsee.AV virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Attempts to connect to a dead IP:Port (3 unique times)
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Dynamic (imported) function loading detected
  • The binary contains an unknown PE section name indicative of packing
  • Authenticode signature is invalid
  • Anomalous binary characteristics

How to determine Win32/Tofsee.AV?


File Info:

name: 6471657ABD5814490F7E.mlwpath: /opt/CAPEv2/storage/binaries/55fb62e76111b14ae77f892cce99e0b9bde1487531b4d2e4e8842dd26d7530cacrc32: 10CD3B15md5: 6471657abd5814490f7e0a9b05b91090sha1: b9838d5a45b27c9426280d6291f65d582ed7010esha256: 55fb62e76111b14ae77f892cce99e0b9bde1487531b4d2e4e8842dd26d7530casha512: 2ae20136c4ddb3327019f1a3a011e4da35fa8875c9fbd34db6f2a702a8507da56979456376450f15c45b40d9cf728189aaddc03d2d61f52c1cd9668be3bbe540ssdeep: 384:BQBWdGapKPVbLaVSVPER8U8kdddZZJIxCUYfg5N4HCnjNDQP:K9apOy4a+xN5N4H2type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1E8734E70777A6C31EAA804BC61F7F510C00A4E117E4E0FFA6E69702C29F578768F5A5Asha3_384: b7a6572b6d1094f35b07e7c88dae76a9c2cf095342533ddb4cc680ea438ae6428c5dea4f60a053cd313aec2dd890a9cbep_bytes: 558bec55ba20284000ffd25dc3cccccctimestamp: 2013-07-01 04:45:19

Version Info:

CompanyName: Hilgraeve, Inc.FileDescription: HyperTerminal AppletFileVersion: 5.1.2600.0Translation: 0x0409 0x0000

Win32/Tofsee.AV also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Mikey.112887
FireEye Generic.mg.6471657abd581449
ALYac Gen:Variant.Mikey.112887
Cylance Unsafe
Zillya Backdoor.Androm.Win32.1602
Sangfor Suspicious.Win32.Save.a
Alibaba TrojanDownloader:Win32/Tofsee.31e52f84
Cybereason malicious.abd581
VirIT Trojan.Win32.Generic.AIUP
Symantec Packed.Generic.459
ESET-NOD32 Win32/Tofsee.AV
APEX Malicious
Paloalto generic.ml
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Mikey.112887
NANO-Antivirus Trojan.Win32.DownLoad3.fjhfgo
Avast Win32:Kryptik-NTE [Trj]
Tencent Win32.Trojan.Generic.Wnwb
Ad-Aware Gen:Variant.Mikey.112887
Sophos Mal/Generic-R + Mal/Zbot-FG
Comodo Malware@#1mk9wgtfmp1o
DrWeb Trojan.DownLoad3.21597
VIPRE LooksLike.Win32.Zbot.b (v)
TrendMicro TROJ_SPNR.28G613
McAfee-GW-Edition BehavesLike.Win32.Generic.lz
Emsisoft Gen:Variant.Mikey.112887 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Variant.Mikey.112887
Jiangmin Trojan.Generic.dwqtk
eGambit Generic.Dropper
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.305AAC
Kingsoft Win32.HeurC.KVM099.a.(kcloud)
ZoneAlarm HEUR:Trojan.Win32.Generic
Microsoft Backdoor:Win32/Tofsee.MAK!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Downloader/Win32.Andromeda.R69073
Acronis suspicious
McAfee PWS-Zbot-FBFG!6471657ABD58
MAX malware (ai score=100)
VBA32 Malware-Cryptor.SB.01798
Malwarebytes Trojan.FakeMS.INC
TrendMicro-HouseCall TROJ_SPNR.28G613
Rising Downloader.Tofsee!8.A3B (CLOUD)
Yandex Backdoor.Androm!0GWMd4fJmnY
Ikarus Trojan-PWS.Win32.Zbot
MaxSecure Trojan.Malware.5940235.susgen
Fortinet W32/Zbot.FG!tr
Webroot Dropper.Gen
AVG Win32:Kryptik-NTE [Trj]
Panda Trj/Hexas.HEU
CrowdStrike win/malicious_confidence_100% (W)

How to remove Win32/Tofsee.AV?

  • 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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