Categories: Malware

Win32/Injector.CVQN removal tips

The Win32/Injector.CVQN 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/Injector.CVQN virus can do?

  • Behavioural detection: Executable code extraction – unpacking
  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • At least one process apparently crashed during execution
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Mimics the system’s user agent string for its own requests
  • Guard pages use detected – possible anti-debugging.
  • Dynamic (imported) function loading detected
  • At least one IP Address, Domain, or File Name was found in a crypto call
  • Performs HTTP requests potentially not found in PCAP.
  • Starts servers listening on 127.0.0.1:12821
  • Enumerates running processes
  • Reads data out of its own binary image
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • 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
  • Code injection with CreateRemoteThread in a remote process
  • Deletes its original binary from disk
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Injection with CreateRemoteThread in a remote process
  • Tries to unhook or modify Windows functions monitored by Cuckoo
  • Created a process from a suspicious location
  • Collects and encrypts information about the computer likely to send to C2 server
  • Installs itself for autorun at Windows startup
  • Attempts to modify proxy settings
  • Collects information to fingerprint the system

Related domains:

wpad.local-net
www.marcotanfoglio.com

How to determine Win32/Injector.CVQN?


File Info:

name: 0E2822BD39E5BDF05054.mlwpath: /opt/CAPEv2/storage/binaries/5432528ee1000fc6b77ab36955876e64547e655ddb6e1add4a010ff81df22256crc32: 00DA10F5md5: 0e2822bd39e5bdf05054791539dfbf9asha1: 89dd52365bffd3f3a541682d27cc5a86bfc84aecsha256: 5432528ee1000fc6b77ab36955876e64547e655ddb6e1add4a010ff81df22256sha512: 09d5f77f4aa1106e3d116b4e376f46f049ff3e05a73b5605670741648e820fe25845a07b293cc514384f5470dd9f9f27d809fcf06531fbf3e1933f5ae035df80ssdeep: 6144:go3VxKqo7gFnBrVMnFSLRJ5/0IsE5uKt1GJsAqcWOtV/aDt83:/iqNFndIwLRJ9pr8JpDWO4t8type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T134D412527940844DC2B88E78A0A3FAF45013AEEC1E614D0BE5D63F2F3A76745DF67642sha3_384: 6673731d7a9cbf91f26ec811cad2d958213a1b9aa85e26c758e5f64212e86ef73d31de1f2ee7865a35896884ee6892b1ep_bytes: 6864af4800e8f0ffffff000000000000timestamp: 2016-10-24 20:03:43

Version Info:

Translation: 0x0409 0x04b0CompanyName: SamsungFileDescription: Pamperize5ProductName: IsochronizeFileVersion: 1.00ProductVersion: 1.00InternalName: KvsteOriginalFilename: Kvste.exe

Win32/Injector.CVQN also known as:

Bkav W32.AIDetect.malware2
Lionic Trojan.Win32.Generic.4!c
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Symmi.68654
FireEye Generic.mg.0e2822bd39e5bdf0
ALYac Gen:Variant.Symmi.68654
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Generic.ky
K7AntiVirus Trojan ( 004fb7ba1 )
Alibaba Trojan:Win32/Injector.e954bc30
K7GW Trojan ( 004fb7ba1 )
Cybereason malicious.d39e5b
BitDefenderTheta Gen:NN.ZevbaF.34062.Lm0@aasMosfi
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Injector.CVQN
APEX Malicious
Paloalto generic.ml
ClamAV Win.Trojan.Zbot-71127
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Symmi.68654
NANO-Antivirus Trojan.Win32.Panda.ehtpeo
Avast Win32:Malware-gen
Tencent Malware.Win32.Gencirc.114b5d61
Ad-Aware Gen:Variant.Symmi.68654
Emsisoft Gen:Variant.Symmi.68654 (B)
DrWeb Trojan.PWS.Panda.2401
Zillya Trojan.Injector.Win32.720538
TrendMicro TrojanSpy.Win32.LOKI.SM.hp
McAfee-GW-Edition Fareit-FHG!0E2822BD39E5
Sophos Mal/Generic-R + Troj/Zbot-LLQ
Ikarus Trojan.VB.Crypt
Jiangmin Trojan.Generic.hdtmb
eGambit Unsafe.AI_Score_99%
Avira HEUR/AGEN.1119910
Antiy-AVL Trojan/Generic.ASMalwS.1C08004
Kingsoft Win32.Troj.Undef.(kcloud)
Gridinsoft Ransom.Win32.Zbot.sa
Microsoft Trojan:Win32/Fareit!ml
GData Gen:Variant.Symmi.68654
Cynet Malicious (score: 99)
AhnLab-V3 Win-Trojan/VBKrand.Gen
McAfee Fareit-FHG!0E2822BD39E5
MAX malware (ai score=89)
VBA32 TrojanPSW.Panda
TrendMicro-HouseCall TrojanSpy.Win32.LOKI.SM.hp
Rising Trojan.Injector!1.B459 (CLASSIC)
Yandex Trojan.Agent!8jl+DasIoFs
SentinelOne Static AI – Malicious PE
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Injector.DGPH!tr
AVG Win32:Malware-gen
Panda Trj/GdSda.A
CrowdStrike win/malicious_confidence_90% (W)

How to remove Win32/Injector.CVQN?

  • 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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