Categories: Trojan

How to remove “Trojan-Dropper.Win32.Injector.upzo”?

The Trojan-Dropper.Win32.Injector.upzo 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-Dropper.Win32.Injector.upzo virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • NtSetInformationThread: attempt to hide thread from debugger
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Enumerates running processes
  • Expresses interest in specific running processes
  • A process created a hidden window
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • Unconventionial language used in binary resources: Chinese (Simplified)
  • The binary contains an unknown PE section name indicative of packing
  • The binary likely contains encrypted or compressed data.
  • The executable is likely packed with VMProtect
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Detects Sandboxie through the presence of a library
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Deletes its original binary from disk
  • Behavioural detection: Injection (inter-process)
  • Forces a created process to be the child of an unrelated process
  • Creates a hidden or system file
  • Anomalous binary characteristics

How to determine Trojan-Dropper.Win32.Injector.upzo?


File Info:

name: 23B491B45C1D88BB4FA8.mlwpath: /opt/CAPEv2/storage/binaries/8d8b0e6c696cdcb293f163f0acf0336125195cdfbb45e6b42a73f7bdb07d1a2bcrc32: DA46C910md5: 23b491b45c1d88bb4fa839aa17b06531sha1: e2370efe7e4109b7c19ec1ee86d3982b30ffd82csha256: 8d8b0e6c696cdcb293f163f0acf0336125195cdfbb45e6b42a73f7bdb07d1a2bsha512: 6254238f28b3b161f70aee7df629884ed25d05641d2f2a4b4801ef05cd129a96c6bbe4b9b0465df3588682987dc99d43f740327544ea69b2c51479cdb7181d90ssdeep: 24576:lUBH4uWK5gM4ue/s2E5D6wi5jYxfe1uJbw2Q:aHrW9D/g6wQu3JUtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1FB353356C2E31661D2E606B4DCF3334CFEBB25841C696E2EF394EA8E5F56003B418799sha3_384: 68aa7ecaa25df9a3de28d4aa3a65405e7eed88231277802bb93b9662bd48d629948360c030174349a60b5e5395ef9c67ep_bytes: 60e9183effff6639d429fb660fbef8c0timestamp: 2019-12-22 14:07:13

Version Info:

0: [No Data]

Trojan-Dropper.Win32.Injector.upzo also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.43145801
FireEye Generic.mg.23b491b45c1d88bb
McAfee Artemis!23B491B45C1D
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
Alibaba TrojanDropper:Win32/Injector.2aa7d9ee
Cybereason malicious.45c1d8
Symantec ML.Attribute.HighConfidence
APEX Malicious
Paloalto generic.ml
Kaspersky Trojan-Dropper.Win32.Injector.upzo
BitDefender Trojan.GenericKD.43145801
NANO-Antivirus Trojan.Win32.Inject.hkgtzb
Avast Win32:Malware-gen
Tencent Win32.Trojan-dropper.Injector.Hrfg
Emsisoft Trojan.GenericKD.43145801 (B)
Comodo Malware@#3ljubk60860kn
DrWeb Trojan.Siggen9.45770
McAfee-GW-Edition BehavesLike.Win32.Generic.tc
Sophos Mal/Generic-S
Avira HEUR/AGEN.1140725
MAX malware (ai score=88)
Antiy-AVL Trojan/Generic.ASMalwS.306C532
Kingsoft Win32.Heur.KVMH017.a.(kcloud)
Microsoft Trojan:Win32/Wacatac.B!ml
ZoneAlarm Trojan-Dropper.Win32.Injector.upzo
GData Trojan.GenericKD.43145801
Cynet Malicious (score: 100)
BitDefenderTheta Gen:NN.ZexaF.34182.fHW@aCyzvEbj
ALYac Trojan.GenericKD.43145801
Rising Dropper.Injector!8.DC (CLOUD)
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Injector.UPZO!tr
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_100% (W)

How to remove Trojan-Dropper.Win32.Injector.upzo?

  • 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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