Categories: Ransom

Should I remove “Ransom.Tescrypt.A4”?

The Ransom.Tescrypt.A4 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 Ransom.Tescrypt.A4 virus can do?

  • Executable code extraction
  • Creates RWX memory
  • A process attempted to delay the analysis task.
  • Reads data out of its own binary image
  • A process created a hidden window
  • Drops a binary and executes it
  • 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
  • Exhibits behavior characteristic of Alphacrypt/Teslacrypt ransomware
  • Installs itself for autorun at Windows startup
  • Writes a potential ransom message to disk
  • Creates a hidden or system file
  • Attempts to modify proxy settings
  • Creates a copy of itself
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Ransom.Tescrypt.A4?


File Info:

crc32: 277C77A4md5: 89f33452c714d9b3f76568fdce9fdfeename: 89F33452C714D9B3F76568FDCE9FDFEE.mlwsha1: c49a27a190db38e0ca0bbf7b08edcca26c90e3bbsha256: f474e9b8f064e050ae4bc3e31bd1d874f5301173cee1a5d2032c12f72651150dsha512: 6d56d50f7c183f6e737684bef2158ec45e8e3cb7e8e827389d69fab3ec0013b714b361b5f0e561d13a0a878996837096df7a93f3331b9a4f848910d3ef1ddc0cssdeep: 6144:nQ5wkJtBQK9l26GdEG5bFpNjFvwvCrx5uDubVamqKX6PoV:SdBQq26GjdjzoDyVamBqitype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 2012. AnVir SoftwareInternalName: AnvirRunServ.exeFileVersion: 6, 5, 0, 0CompanyName: AnVir SoftwarePrivateBuild: LegalTrademarks: Comments: Allows to run any application as a service. These applications run on Windows startup before user login.ProductName: Anvir Task ManagerOLESelfRegister: SpecialBuild: ProductVersion: 6, 5, 0, 0FileDescription: Run Programs As ServicesOriginalFilename: Translation: 0x0409 0x04b0

Ransom.Tescrypt.A4 also known as:

Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 004defe31 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.3999
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Tescrypt.A4
ALYac Trojan.Agent.BQQG
Cylance Unsafe
Zillya Trojan.Bitman.Win32.1091
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Tescrypt.acbb6f04
K7GW Trojan ( 004defe31 )
Cybereason malicious.2c714d
Cyren W32/Rovnix.C.gen!Eldorado
Symantec Packed.Generic.521
ESET-NOD32 Win32/Filecoder.TeslaCrypt.I
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Agent.BQQG
NANO-Antivirus Trojan.Win32.Crypmod.easpsi
ViRobot Trojan.Win32.R.Agent.279552.H
SUPERAntiSpyware Ransom.TeslaCrypt/Variant
MicroWorld-eScan Trojan.Agent.BQQG
Tencent Malware.Win32.Gencirc.10c3aaab
Ad-Aware Trojan.Agent.BQQG
Sophos ML/PE-A + Mal/Wonton-CD
Comodo Malware@#7sh9tubfukxs
BitDefenderTheta Gen:NN.ZexaF.34628.rq0@aandP2iO
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_KRYPTIK_FB26005D.UVPM
McAfee-GW-Edition Ransomware-FGL!89F33452C714
FireEye Generic.mg.89f33452c714d9b3
Emsisoft Trojan.Agent.BQQG (B)
SentinelOne Static AI – Malicious PE
Jiangmin TrojanProxy.Lethic.hr
Webroot W32.Adware.Gen
Avira TR/Crypt.XPACK.Gen8
eGambit Generic.Dropper
Microsoft Ransom:Win32/Tescrypt.D
Arcabit Trojan.Agent.BQQG
AegisLab Trojan.Win32.Monder.lqxf
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Agent.BQQG
AhnLab-V3 Trojan/Win32.Teslacrypt.C1336860
Acronis suspicious
McAfee Ransomware-FGL!89F33452C714
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Panda Trj/Genetic.gen
TrendMicro-HouseCall TROJ_KRYPTIK_FB26005D.UVPM
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Ikarus Trojan-Ransom.TeslaCrypt4
Fortinet W32/Kryptik.EOZI!tr
AVG Win32:Trojan-gen
Qihoo-360 Win32/Ransom.Tescrypt.HykCEpsA

How to remove Ransom.Tescrypt.A4?

  • 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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