Categories: Malware

Doina.3143 (B) removal guide

The Doina.3143 (B) 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
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What Doina.3143 (B) virus can do?

  • Possible date expiration check, exits too soon after checking local time
  • A process created a hidden window
  • The binary likely contains encrypted or compressed data.
  • The executable is compressed using UPX
  • Uses Windows utilities for basic functionality
  • Installs itself for autorun at Windows startup
  • Attempts to disable UAC
  • Uses suspicious command line tools or Windows utilities

How to determine Doina.3143 (B)?


File Info:

crc32: 40FFD58Emd5: 5b4c6628fa4c810fabeb9303f2850ee7name: 5B4C6628FA4C810FABEB9303F2850EE7.mlwsha1: a2ddb46ee03d2786b90cfffd2cca9e77d246f59csha256: 5cf2e2771f8e44b1a5f9ede97fa92eb1d2227bc5ce03ea8f26fd1ed13f48ea8csha512: eaa6121dbe94e393452038341dafd5dce0253812dce92488bc4e9682390dc46fe6dad03a8f01844b07097c4896de28e521aafac65f22828b5163281489cb3ca8ssdeep: 384:4r9sOcIp6wRcsSYLvKWLWbstQTid6HJyraXkqdkJ7PNWoeEzcAaNJawcudoD7Ug:kmOhplcsHvKWzX6HJmFqda7koepnbcutype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Doina.3143 (B) also known as:

Bkav W32.AIDetect.malware2
ALYac Gen:Variant.Doina.3143
Malwarebytes Malware.Heuristic.1003
BitDefender Gen:Variant.Doina.3143
APEX Malicious
Kaspersky UDS:Trojan-Ransom.Win32.Blocker
MicroWorld-eScan Gen:Variant.Doina.3143
Ad-Aware Gen:Variant.Doina.3143
Sophos ML/PE-A
FireEye Gen:Variant.Doina.3143
Emsisoft Gen:Variant.Doina.3143 (B)
Webroot
Arcabit Trojan.Doina.DC47
GData Gen:Variant.Doina.3143
MAX malware (ai score=86)
Rising Malware.Heuristic!ET#81% (RDMK:cmRtazoDrtxbd5lW1IxfksUACSs4)
Qihoo-360 HEUR/QVM18.1.657A.Malware.Gen

How to remove Doina.3143 (B)?

  • 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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