Categories: Backdoor

Backdoor:Win32/Tofsee (file analysis)

The Backdoor:Win32/Tofsee 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 virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • Authenticode signature is invalid

How to determine Backdoor:Win32/Tofsee?


File Info:

name: AE0D32E51F36CE6E6E8C.mlwpath: /opt/CAPEv2/storage/binaries/9e7df66ee4f2f6a3958333ee8e535153acd4ecf69871872937a2ed3a097de6bccrc32: F3E5836Cmd5: ae0d32e51f36ce6e6e8c5ccdc3d253a0sha1: fc3ad335504d729619729edbceea0937242ccf97sha256: 9e7df66ee4f2f6a3958333ee8e535153acd4ecf69871872937a2ed3a097de6bcsha512: cd15c42c065499baddbeeb8c8e45860985953eb6d34ac794f5a7ae850faeefd0f08bbdcb2c780dacf68b21aff55a54705764ee191103e7e41e723f4b9393a871ssdeep: 3072:wob+uWuEdEBFYyrxt/9hXtniAAQdayNoAE673oBq3:MuWuEdEBWyr3FqAjdtW36jotype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1550436598EA8E827FB716CF72044B80EE173DE3645A46F3F50D0D0757AEBA1686C612Csha3_384: f07f4b1a4256a82cdf1c8a52c503f6c0dd9be8c9a9c96fac07bdb3ac91f3f23d4e826c2bda0948138a5837ff1e2233e5ep_bytes: 6868134000e8f0ffffff000000000000timestamp: 2016-05-24 11:53:11

Version Info:

Translation: 0x0409 0x04b0Comments: Centerklassers0CompanyName: SlipsFileDescription: Afspalter1ProductName: AborsementFileVersion: 1.00ProductVersion: 1.00InternalName: Extrapituitary2OriginalFilename: Extrapituitary2.exe

Backdoor:Win32/Tofsee also known as:

Bkav W32.AIDetectMalware
Lionic Trojan.Win32.Fareit.mCZg
Cynet Malicious (score: 100)
Skyhigh Trojan-FITM!AE0D32E51F36
McAfee Trojan-FITM!AE0D32E51F36
Cylance unsafe
Zillya Backdoor.Tofsee.Win32.1585
Sangfor Suspicious.Win32.Save.vb
K7AntiVirus Trojan ( 0055e3991 )
Alibaba Backdoor:Win32/Tofsee.71974c14
K7GW Trojan ( 0055e3991 )
Cybereason malicious.5504d7
VirIT Trojan.Win32.Generic.LRE
Symantec ML.Attribute.HighConfidence
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Injector.CZHI
APEX Malicious
ClamAV Win.Packer.VbPack-0-6334882-0
Kaspersky Backdoor.Win32.Tofsee.yfc
BitDefender Gen:Heur.PonyStealer.lm0@c0MUyWni
NANO-Antivirus Trojan.Win32.Spambot.ectkzp
SUPERAntiSpyware Trojan.Agent/Gen-VB
MicroWorld-eScan Gen:Heur.PonyStealer.lm0@c0MUyWni
Avast Win32:Evo-gen [Trj]
Tencent Malware.Win32.Gencirc.10b2c225
Sophos Troj/Tofsee-BG
F-Secure Heuristic.HEUR/AGEN.1336367
DrWeb Trojan.VbCrypt.1362
VIPRE Gen:Heur.PonyStealer.lm0@c0MUyWni
TrendMicro BKDR_TOFSEE.SMA
Trapmine suspicious.low.ml.score
FireEye Generic.mg.ae0d32e51f36ce6e
Emsisoft Gen:Heur.PonyStealer.lm0@c0MUyWni (B)
Ikarus Backdoor.Win32.Tofsee
GData Gen:Heur.PonyStealer.lm0@c0MUyWni
Jiangmin Backdoor.Tofsee.uo
Webroot W32.Trojan.GenKD
Google Detected
Avira HEUR/AGEN.1336367
Antiy-AVL Trojan/Win32.TSGeneric
Xcitium Malware@#3ieiqkttytspo
Arcabit Trojan.PonyStealer.E57D62
ViRobot Trojan.Win32.Z.Injector.184320.GL
ZoneAlarm Backdoor.Win32.Tofsee.yfc
Microsoft Backdoor:Win32/Tofsee
Varist W32/Tofsee.IEXN-0531
AhnLab-V3 Win-Trojan/VBKrypt.RP.X1764
BitDefenderTheta Gen:NN.ZevbaF.36792.lm0@a0MUyWni
ALYac Gen:Heur.PonyStealer.lm0@c0MUyWni
MAX malware (ai score=96)
VBA32 BScope.TrojanDropper.Dorifel
Malwarebytes Malware.AI.4265089491
Panda Trj/CI.A
TrendMicro-HouseCall BKDR_TOFSEE.SMA
Rising Backdoor.Tofsee!8.1E9 (KTSE)
Yandex Backdoor.Tofsee!0JCmSOZb3MA
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Injector.DRKJ!tr
AVG Win32:Evo-gen [Trj]
DeepInstinct MALICIOUS
CrowdStrike win/malicious_confidence_100% (W)

How to remove Backdoor:Win32/Tofsee?

  • 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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