Win32:Vundo-QB [Trj]

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Seeing the Win32:Vundo-QB [Trj] detection usually means that your computer is in big danger. This virus can correctly be identified as ransomware – virus which ciphers your files and asks you to pay for their decryption. Deleteing it requires some unusual steps that must be taken as soon as possible.
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Win32:Vundo-QB [Trj] detection is a malware detection you can spectate in your system. It generally shows up after the preliminary procedures on your PC – opening the suspicious e-mail, clicking the banner in the Web or installing the program from unreliable resources. From the moment it shows up, you have a short time to do something about it before it begins its destructive activity. And be sure – it is far better not to await these harmful things.

What is Win32:Vundo-QB [Trj] virus?

Win32:Vundo-QB [Trj] is ransomware-type malware. It looks for the files on your disk, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your documents inaccessible, this virus additionally does a lot of harm to your system. It alters the networking setups in order to stop you from checking out the elimination guidelines or downloading the antivirus. Sometimes, Win32:Vundo-QB [Trj] can even block the launching of anti-malware programs.

Win32:Vundo-QB [Trj] Summary

Summarizingly, Win32:Vundo-QB [Trj] virus activities in the infected system are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • HTTPS urls from behavior.;
  • Reads data out of its own binary image;
  • 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.;
  • The executable is compressed using UPX;
  • Authenticode signature is invalid;
  • Attempts to modify proxy settings;
  • Harvests cookies for information gathering;
  • Ciphering the files located on the victim’s disk drive — so the victim cannot check these documents;
  • Blocking the launching of .exe files of anti-virus programs
  • Blocking the launching of installation files of anti-malware apps

Ransomware has been a horror story for the last 4 years. It is difficult to picture a more harmful virus for both individual users and corporations. The algorithms used in Win32:Vundo-QB [Trj] (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need a lot more time than our galaxy actually exists, and possibly will exist. However, that virus does not do all these horrible things without delay – it can take up to a few hours to cipher all of your documents. Thus, seeing the Win32:Vundo-QB [Trj] detection is a clear signal that you have to begin the elimination process.

Where did I get the Win32:Vundo-QB [Trj]?

Routine methods of Win32:Vundo-QB [Trj] injection are standard for all other ransomware variants. Those are one-day landing websites where users are offered to download and install the free program, so-called bait emails and hacktools. Bait e-mails are a quite new method in malware spreading – you receive the e-mail that mimics some standard notifications about shipments or bank service conditions modifications. Within the email, there is a malicious MS Office file, or a link which opens the exploit landing page.

Malicious email spam

Malicious email message. This one tricks you to open the phishing website.

Preventing it looks pretty uncomplicated, but still needs a lot of focus. Malware can hide in various spots, and it is better to prevent it even before it gets into your PC than to rely on an anti-malware program. Common cybersecurity knowledge is just an essential item in the modern world, even if your interaction with a PC stays on YouTube videos. That may keep you a lot of time and money which you would certainly spend while searching for a solution.

Win32:Vundo-QB [Trj] malware technical details

File Info:

name: CDE6057E32F9266D4949.mlw
path: /opt/CAPEv2/storage/binaries/a7f80f871fa7932a3986c967e493de0e4281d556f3201a8f71b2306c9a08575a
crc32: 8A61176D
md5: cde6057e32f9266d494907b35ca30cd7
sha1: 0bd6ccf63c04eb0e8254ae07396e0bcf062dc33b
sha256: a7f80f871fa7932a3986c967e493de0e4281d556f3201a8f71b2306c9a08575a
sha512: 9a4f6d3eebaaf9a469061be4b7a6c45e2f4288dac574b3d8273663f08630c702af37abf9eef29f5df3ce1bd02666b6b61a69bcd9aafa32bfda7e6fb64f03183b
ssdeep: 1536:AKYxYuH4m8IBnKPzfTqYTiUCI8nGnRPyv+:AKARHTPBnKPzfPOUKGnRPyv
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1A263026AAA921473D90142F2971D16FD1FAC37850357CB56E86107AAEC2688DED13F33
sha3_384: 3fdf84eebcd5202a3c98b58c204b07c7f01869a7047b67f151262697727515ea65b70fe0f3e853a480a96162145965fb
ep_bytes: 60be00f041008dbe0020feff57eb0b2e
timestamp: 2011-02-03 14:03:03

Version Info:

CompanyName: Play65
FileDescription: Watts Tux
ProductName: Cat Glean Sure Golf Groove
ProductVersion: 9, 8
Translation: 0x0409 0x04b0

Win32:Vundo-QB [Trj] also known as:

Bkav W32.AIDetect.malware1
Elastic malicious (moderate confidence)
MicroWorld-eScan Gen:Trojan.Heur.Zbot.6
ClamAV Win.Trojan.Kuluoz-164
ALYac Gen:Trojan.Heur.Zbot.6
Cylance Unsafe
Zillya Dropper.Dapato.Win32.6329
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Spyware ( 002edad51 )
Alibaba Trojan:Win32/SpyVoltar.fcd98759
K7GW Spyware ( 002edad51 )
CrowdStrike win/malicious_confidence_100% (W)
Cyren W32/Yakes.K.gen!Eldorado
Symantec ML.Attribute.HighConfidence
tehtris Generic.Malware
ESET-NOD32 Win32/SpyVoltar.A
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Trojan.Heur.Zbot.6
NANO-Antivirus Trojan.Win32.Dapato.wfyxj
SUPERAntiSpyware Trojan.Agent/Gen-Falprod[Cont]
Avast Win32:Vundo-QB [Trj]
Tencent Malware.Win32.Gencirc.114c3339
Ad-Aware Gen:Trojan.Heur.Zbot.6
Sophos ML/PE-A + Mal/EncPk-ADJ
Comodo TrojWare.Win32.Kryptik.ACNJ@4ncsri
DrWeb Trojan.Siggen3.59693
VIPRE Gen:Trojan.Heur.Zbot.6
TrendMicro TROJ_DAPATO_0000000.TOMA
McAfee-GW-Edition BehavesLike.Win32.Generic.kc
Emsisoft Gen:Trojan.Heur.Zbot.6 (B)
SentinelOne Static AI – Malicious PE
GData Gen:Trojan.Heur.Zbot.6
Jiangmin TrojanDropper.Dapato.eep
Webroot W32.Worm.Gen
Avira TR/Crypt.XPACK.Gen
Antiy-AVL Trojan/Generic.ASMalwS.35
Microsoft Trojan:Win32/Wacatac.B!ml
Google Detected
AhnLab-V3 Trojan/Win32.Infostealer.R372601
McAfee GenericRXAA-FA!CDE6057E32F9
MAX malware (ai score=79)
VBA32 BScope.Trojan.KillAV
Malwarebytes Malware.Heuristic.1003
TrendMicro-HouseCall TROJ_DAPATO_0000000.TOMA
Rising Malware.Undefined!8.C (TFE:5:7EiqCH8sc6D)
Yandex Trojan.DR.Dapato!/CMKcxTs0ds
Ikarus Trojan-Downloader.Win32.Cbeplay
Fortinet W32/Yakes.B!tr
BitDefenderTheta AI:Packer.EB5647A916
AVG Win32:Vundo-QB [Trj]
Cybereason malicious.e32f92
Panda Bck/Qbot.AO

How to remove Win32:Vundo-QB [Trj]?

Win32:Vundo-QB [Trj] malware is incredibly hard to delete by hand. It places its data in multiple locations throughout the disk, and can get back itself from one of the parts. Additionally, various modifications in the windows registry, networking settings and also Group Policies are quite hard to identify and return to the original. It is much better to make use of a special tool – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the best for malware elimination objectives.

Why GridinSoft Anti-Malware? It is pretty lightweight and has its databases updated almost every hour. Additionally, it does not have such bugs and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for clearing away malware of any type.

Remove the viruses with GridinSoft Anti-Malware

  • Download and install GridinSoft Anti-Malware. After the installation, you will be offered to perform the Standard Scan. Approve this action.
  • Gridinsoft Anti-Malware during the scan process

  • Standard scan checks the logical disk where the system files are stored, together with the files of programs you have already installed. The scan lasts up to 6 minutes.
  • GridinSoft Anti-Malware scan results

  • When the scan is over, you may choose the action for each detected virus. For all files of [SHORT_NAME] the default option is “Delete”. Press “Apply” to finish the malware removal.
  • GridinSoft Anti-Malware - After Cleaning
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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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