Categories: RansomTrojan

Should I remove “Trojan-Ransom.Win32.Blocker.ulhc”?

The Trojan-Ransom.Win32.Blocker.ulhc 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 Trojan-Ransom.Win32.Blocker.ulhc virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Creates RWX memory
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • Reads data out of its own binary image
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Sniffs keystrokes
  • Behavioural detection: Injection (inter-process)
  • Created a process from a suspicious location
  • Installs itself for autorun at Windows startup
  • Harvests cookies for information gathering
  • Anomalous binary characteristics

How to determine Trojan-Ransom.Win32.Blocker.ulhc?


File Info:

name: 37309ED295BA60D45ADA.mlwpath: /opt/CAPEv2/storage/binaries/03496d40654c99a467faec878f2ae9a8186de3a17f1ffc384c1cad5289014bc8crc32: 6D50E1DFmd5: 37309ed295ba60d45ada1dff913144a2sha1: ba1d95e645418318e910ad31149a8b0969628278sha256: 03496d40654c99a467faec878f2ae9a8186de3a17f1ffc384c1cad5289014bc8sha512: b6fda2d644115a8f831c05287af061fe33cdf6cf6c7da0e132ae5fca62016d97951dbec59aa2fff0c774e5a1e1c96a921e49f213e7cdc259ede691fb7ca46324ssdeep: 196608:00azg7DS80azg7DS8h0azg7DS80azg7DC:Sg7uKg7uMg7uKg7etype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T16586123AF5D08437D1236E7CCC5BA794A825BEE01D28608A7BEC1D49DF39B8135262D7sha3_384: f931544de7e905c3e7a511771d1fdfd585aaffd62c9057985e478d1ab66f4b96dcf4338afeec1888a2895ed8c2997afbep_bytes: 55545d906a2890596a006a004975f953timestamp: 1992-06-19 22:22:17

Version Info:

0: [No Data]

Trojan-Ransom.Win32.Blocker.ulhc also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Androm.m!c
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader6.7779
MicroWorld-eScan Gen:Variant.Symmi.34741
FireEye Generic.mg.37309ed295ba60d4
CAT-QuickHeal Trojan.WacatacPMF.S16539689
McAfee GenericRXIP-BJ!37309ED295BA
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 00548e051 )
Alibaba Trojan:Win32/Starter.ali1001008
K7GW Trojan ( 00548e051 )
Cybereason malicious.295ba6
BitDefenderTheta AI:Packer.9896AD8521
Cyren W32/Injector.OZVT-2500
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.AHHO
TrendMicro-HouseCall TROJ_GEN.R002C0DL821
Paloalto generic.ml
ClamAV Win.Trojan.Mbrlock-9779766-0
Kaspersky Trojan-Ransom.Win32.Blocker.ulhc
BitDefender Gen:Variant.Symmi.34741
NANO-Antivirus Trojan.Win32.Dapato.bsjzfg
Avast Win32:MBRlock-DV [Trj]
Tencent Trojan.Win32.Blocker.zg
Ad-Aware Gen:Variant.Symmi.34741
TACHYON Backdoor/W32.Androm.7880704
Sophos Mal/Generic-R + Troj/Agent-BFYB
Comodo TrojWare.Win32.Injector.HO@82j6jo
TrendMicro TROJ_GEN.R002C0DL821
McAfee-GW-Edition BehavesLike.Win32.Generic.wc
Emsisoft Gen:Variant.Symmi.34741 (B)
Ikarus Trojan-Downloader.Win32.Banload
GData Win32.Trojan.PSE.13Q4XMA
Jiangmin Trojan.Gimemo.afj
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan[Ransom]/Win32.Blocker
Microsoft Trojan:Win32/Injector.INK!MTB
Cynet Malicious (score: 100)
AhnLab-V3 Dropper/Win32.Dapato.R83155
Acronis suspicious
VBA32 Trojan.Downloader
MAX malware (ai score=82)
Malwarebytes Trojan.Crypt
APEX Malicious
Rising Trojan.Injector!1.DA56 (CLASSIC)
Yandex Trojan.Injector!nfedw5apY3U
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_95%
Fortinet W32/Injector.AHHO!tr
AVG Win32:MBRlock-DV [Trj]
Panda Trj/Genetic.gen
CrowdStrike win/malicious_confidence_90% (W)

How to remove Trojan-Ransom.Win32.Blocker.ulhc?

  • 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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