Categories: Malware

Win32/Filecoder.TeslaCrypt.C removal tips

The Win32/Filecoder.TeslaCrypt.C 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/Filecoder.TeslaCrypt.C virus can do?

  • Executable code extraction
  • Compression (or decompression)
  • Creates RWX memory
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Arabic (Qatar)
  • The binary likely contains encrypted or compressed data.
  • Uses Windows utilities for basic functionality
  • Attempts to remove evidence of file being downloaded from the Internet
  • Attempts to delete volume shadow copies
  • Deletes its original binary from disk
  • Network activity contains more than one unique useragent.
  • Installs itself for autorun at Windows startup
  • Writes a potential ransom message to disk
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Creates a known TeslaCrypt/AlphaCrypt ransomware decryption instruction / key file.
  • Uses suspicious command line tools or Windows utilities

How to determine Win32/Filecoder.TeslaCrypt.C?


File Info:

crc32: 0D36FB1Bmd5: 4d6a8b9dab890bb13a744c73be917753name: 4D6A8B9DAB890BB13A744C73BE917753.mlwsha1: 9ee9f3ed4d983f549cbe6c2d303077d189ce0d65sha256: 1c442d37dbf41656f0d09d879e2dc94f6d3e675a6e72192c10db3fe9d0f9505esha512: 15f02cd6fdd3a9ea681251f6d251a1be7d9bd80672527281389b0da3e8b3f9caf312664090919e3e02296819a222be8a85debca0d561e506bc9fce78df0169c4ssdeep: 3072:/6HQZFW29PNV+vG16v17I6xg0DQdu2nAmMu3Xft6GBS/QVa4XxvD4PlyxaGpLfx:CwZ4i6SCZINbMG6MS/QnhjLwctype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Sweetening 1980-2003InternalName: Tuner.exeFileVersion: 8.3.0.4CompanyName: 4t Niagara SoftwareProductName: StabilisesProductVersion: 8.3.0.4FileDescription: SigningsOriginalFilename: Tuner.exeTranslation: 0x0409 0x0000

Win32/Filecoder.TeslaCrypt.C also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004b56ff1 )
Elastic malicious (high confidence)
DrWeb Trojan.AVKill.37557
Cynet Malicious (score: 100)
Cylance Unsafe
Zillya Trojan.Deshacop.Win32.126
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Deshacop.3a39a7e4
K7GW Trojan ( 004b56ff1 )
Baidu Win32.Trojan.Kryptik.qb
Cyren W32/Backdoor.YQTD-9311
Symantec Ransom.TeslaCrypt!gm
ESET-NOD32 Win32/Filecoder.TeslaCrypt.C
Zoner Trojan.Win32.35139
APEX Malicious
Avast Win32:TeslaCrypt-EN [Trj]
ClamAV Win.Malware.Agent1672417685/CRDF-1
Kaspersky Trojan.Win32.Deshacop.iu
BitDefender Trojan.Cripack.Gen.1
NANO-Antivirus Trojan.Win32.Deshacop.duxlyr
SUPERAntiSpyware Trojan.Agent/Gen-Malagent
MicroWorld-eScan Trojan.Cripack.Gen.1
Tencent Malware.Win32.Gencirc.10c752a7
Ad-Aware Trojan.Cripack.Gen.1
Sophos Mal/Generic-R + Mal/Tinba-N
Comodo Malware@#39h715zk3s6bj
BitDefenderTheta Gen:NN.ZexaF.34628.qq0@aywRaWii
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_FRS.0NA103BL20
McAfee-GW-Edition TeslaCrypt!4D6A8B9DAB89
FireEye Generic.mg.4d6a8b9dab890bb1
Emsisoft Trojan.Cripack.Gen.1 (B)
Jiangmin Trojan/Deshacop.av
Webroot W32.Malware.Gen
Avira TR/AD.Cryptowall.Y.7
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Tescrypt.A
AegisLab Trojan.Win32.Deshacop.4!c
GData Trojan.Cripack.Gen.1
AhnLab-V3 Win-Trojan/Lockycrypt.Gen
Acronis suspicious
McAfee TeslaCrypt!4D6A8B9DAB89
MAX malware (ai score=100)
VBA32 Trojan.Deshacop
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_FRS.0NA103BL20
Rising Trojan.Spy.Win32.Tescrypt.a (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.DTBC!tr
AVG Win32:TeslaCrypt-EN [Trj]
Qihoo-360 Win32/Ransom.Tescrypt.HwcBhogA

How to remove Win32/Filecoder.TeslaCrypt.C?

  • 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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