Categories: BackdoorTrojan

Trojan.Backdoor.PVA removal

The Trojan.Backdoor.PVA 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.Backdoor.PVA virus can do?

  • SetUnhandledExceptionFilter detected (possible anti-debug)
  • Behavioural detection: Executable code extraction – unpacking
  • Yara rule detections observed from a process memory dump/dropped files/CAPE
  • Creates RWX memory
  • Possible date expiration check, exits too soon after checking local time
  • Dynamic (imported) function loading detected
  • Enumerates the modules from a process (may be used to locate base addresses in process injection)
  • Enumerates running processes
  • A process created a hidden window
  • Access the NetLogon registry key, potentially used for discovery or tampering
  • CAPE extracted potentially suspicious content
  • Drops a binary and executes it
  • The binary likely contains encrypted or compressed data.
  • Authenticode signature is invalid
  • Uses Windows utilities for basic functionality
  • Uses Windows utilities for basic functionality
  • Behavioural detection: Injection (Process Hollowing)
  • Executed a process and injected code into it, probably while unpacking
  • Behavioural detection: Injection (inter-process)
  • Behavioural detection: Transacted Hollowing
  • Installs itself for autorun at Windows startup
  • Creates a hidden or system file
  • CAPE detected the QakBot malware family
  • Creates a copy of itself
  • Anomalous binary characteristics
  • Uses suspicious command line tools or Windows utilities

How to determine Trojan.Backdoor.PVA?


File Info:

name: E4DBD41B04B1F0BE069B.mlwpath: /opt/CAPEv2/storage/binaries/85617e6bd2b4cba57d395f742f49cca1f674e392b2451259de17b750af6b1a2fcrc32: 5BAFCCBDmd5: e4dbd41b04b1f0be069b09af974fcf71sha1: 0899b9a9b46aeec47b2153cb74571299149d5e9bsha256: 85617e6bd2b4cba57d395f742f49cca1f674e392b2451259de17b750af6b1a2fsha512: 3eb590fdd1d7516d6d3497c3eedaf869849902026316dd5f13e71caee15afb8d6f4bbef09c24da3c559f7f30c188c48bab3ee0b17b7c7db9b729eb50a3e728afssdeep: 12288:JrRLE0GEObdQEg3V0QREE5wOtOBUfkRbCSRnUYY0BTQEWK:JfGDxQXurItqUc3Rni0BTV5type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1920502A036628931CA17A4BA6974D33079A861421F3743FFB26106FD4AC25F27DBD64Fsha3_384: 0adf28aa4dcb349c3558085764b6c6bd6ab66cd6e1fb8e8fc39e5e59847a9e5a2c6886323d19368ce6786a9068d9267dep_bytes: e8b5380000e91efeffff8bff558bec56timestamp: 2019-02-22 06:18:07

Version Info:

0: [No Data]

Trojan.Backdoor.PVA also known as:

Bkav W32.AIDetect.malware1
Lionic Trojan.Win32.Qbot.m!c
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Backdoor.PVA
McAfee GenericATG-FACX!E4DBD41B04B1
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.1597683
Sangfor Trojan.Win32.Save.a
K7AntiVirus Riskware ( 0040eff71 )
Alibaba Backdoor:Win32/Kryptik.c041a41e
K7GW Riskware ( 0040eff71 )
Cybereason malicious.b04b1f
BitDefenderTheta Gen:NN.ZexaF.34294.0yW@aiatRZji
Symantec W32.Qakbot!gm
ESET-NOD32 a variant of Win32/Kryptik.GPZN
Paloalto generic.ml
Kaspersky Backdoor.Win32.Qbot.ahwy
BitDefender Trojan.Backdoor.PVA
NANO-Antivirus Trojan.Win32.Qbot.fnicjs
Avast Win32:Trojan-gen
Tencent Malware.Win32.Gencirc.114d9315
Ad-Aware Trojan.Backdoor.PVA
Sophos Mal/Generic-R + Mal/Qbot-R
Comodo Malware@#nw3jl7fagydl
VIPRE Trojan.Win32.Generic!BT
TrendMicro TrojanSpy.Win32.EMOTET.SMAL07A.hp
McAfee-GW-Edition BehavesLike.Win32.Dropper.ch
FireEye Generic.mg.e4dbd41b04b1f0be
Emsisoft Trojan.Backdoor.PVA (B)
SentinelOne Static AI – Malicious PE
GData Trojan.Backdoor.PVA
Jiangmin Backdoor.QBot.jl
Avira HEUR/AGEN.1116161
Antiy-AVL Trojan/Generic.ASMalwS.2AA6A60
Arcabit Trojan.Backdoor.PVA
Microsoft Trojan:Win32/Occamy.C85
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.Generic.C3036713
Acronis suspicious
VBA32 BScope.Backdoor.Qbot
ALYac Trojan.Backdoor.PVA
MAX malware (ai score=87)
Malwarebytes Trojan.Crypt
TrendMicro-HouseCall TrojanSpy.Win32.EMOTET.SMAL07A.hp
Ikarus Trojan.Qbot
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Generic.AP.280938!tr
Webroot W32.Trojan.Gen
AVG Win32:Trojan-gen
Panda Trj/CI.A
CrowdStrike win/malicious_confidence_90% (D)

How to remove Trojan.Backdoor.PVA?

  • 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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