TrojanDropper:Win32/Vundo.AA

Spectating the TrojanDropper:Win32/Vundo.AA detection name means that your computer is in big danger. This malware can correctly be identified as ransomware – sort of malware which ciphers your files and asks you to pay for their decryption. Stopping it requires some specific steps that must be taken as soon as possible.

TrojanDropper:Win32/Vundo.AA detection is a malware detection you can spectate in your computer. It usually appears after the provoking actions on your PC – opening the dubious email, clicking the advertisement in the Internet or installing the program from untrustworthy sources. From the instance it appears, you have a short time to take action before it starts its malicious action. And be sure – it is much better not to await these destructive things.

What is TrojanDropper:Win32/Vundo.AA virus?

TrojanDropper:Win32/Vundo.AA is ransomware-type malware. It searches for the files on your computer, encrypts it, and after that asks you to pay the ransom for receiving the decryption key. Besides making your documents inaccessible, this malware additionally does a ton of harm to your system. It alters the networking setups in order to avoid you from reading the elimination manuals or downloading the antivirus. In some cases, TrojanDropper:Win32/Vundo.AA can even prevent the launching of anti-malware programs.

TrojanDropper:Win32/Vundo.AA Summary

In total, TrojanDropper:Win32/Vundo.AA malware activities in the infected PC are next:

  • Behavioural detection: Executable code extraction – unpacking;
  • SetUnhandledExceptionFilter detected (possible anti-debug);
  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Creates RWX memory;
  • Anomalous file deletion behavior detected (10+);
  • Dynamic (imported) function loading detected;
  • Enumerates running processes;
  • CAPE extracted potentially suspicious content;
  • Unconventionial language used in binary resources: Russian;
  • The binary contains an unknown PE section name indicative of packing;
  • Authenticode signature is invalid;
  • Installs itself for autorun at Windows startup;
  • Collects information to fingerprint the system;
  • Anomalous binary characteristics;
  • Clears web history;
  • Encrypting the files located on the target’s drives — so the victim cannot check these files;
  • Blocking the launching of .exe files of anti-virus apps
  • Blocking the launching of installation files of anti-malware apps

Ransomware has actually been a major problem for the last 4 years. It is hard to realize a more dangerous malware for both individuals and corporations. The algorithms used in TrojanDropper:Win32/Vundo.AA (generally, RHA-1028 or AES-256) are not hackable – with minor exclusions. To hack it with a brute force, you need to have more time than our galaxy currently exists, and possibly will exist. But that malware does not do all these unpleasant things without delay – it may require up to several hours to cipher all of your files. Hence, seeing the TrojanDropper:Win32/Vundo.AA detection is a clear signal that you must start the removal procedure.

Where did I get the TrojanDropper:Win32/Vundo.AA?

General methods of TrojanDropper:Win32/Vundo.AA injection are common for all other ransomware variants. Those are one-day landing websites where users are offered to download the free program, so-called bait e-mails and hacktools. Bait emails are a pretty modern tactic in malware spreading – you receive the e-mail that simulates some routine notifications about deliveries or bank service conditions modifications. Inside of the email, there is a corrupted MS Office file, or a web 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 easy, however, still requires a lot of recognition. Malware can hide in different places, and it is better to prevent it even before it goes into your system than to rely upon an anti-malware program. Common cybersecurity awareness is just an important item in the modern world, even if your relationship with a PC stays on YouTube videos. That can save you a lot of time and money which you would certainly spend while trying to find a fixing guide.

TrojanDropper:Win32/Vundo.AA malware technical details

File Info:

name: 513B4BAB8B69FE164A3C.mlwpath: /opt/CAPEv2/storage/binaries/15e61577e0316f2f5b1a4186a3f960ca1bffad33a70f3deb56bb1f2c1e6d2eefcrc32: FD0C539Amd5: 513b4bab8b69fe164a3cb1cdee92ce42sha1: bbef46605c867347c76e1e85bc61c5edec561e70sha256: 15e61577e0316f2f5b1a4186a3f960ca1bffad33a70f3deb56bb1f2c1e6d2eefsha512: fda0d177968f0160a5c66c99ff068ef3efb114fb169d7308e19c02a72313cd8f6cb406bffd1badca0e522bde89f33fcb8a4575f85e267e0ca94cbbbd66b801a6ssdeep: 3072:hLlGRuS1wdXNw///x3OQM8r/CKEAU2RUNRlORBI9HExpe:hLkRuS2Nw3/xYmCKRUFNRERpxMtype: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T14DE3F121AE7044A7F153933D377C8728171D8EB3976A27492D4E12E6EC63A93C31B52Esha3_384: ed221dd9e610a0a5dc2a3032c0d40317e653d2379b36aee76c0c21f43b1f7e3df8040899cdbf401d7a86741d054ce995ep_bytes: 833d6c1442000075358b155d14420085timestamp: 1992-06-19 04:10:01

Version Info:

0: [No Data]

TrojanDropper:Win32/Vundo.AA also known as:

Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.SMSSend.2363
MicroWorld-eScan Trojan.Vundo.GYS
FireEye Generic.mg.513b4bab8b69fe16
McAfee PWS-Zbot.gen.aey
Cylance Unsafe
VIPRE Virtumonde
Sangfor Suspicious.Win32.Save.a
K7AntiVirus Trojan ( 0040f23c1 )
Alibaba Backdoor:Win32/Cidox.51f246f5
K7GW Trojan ( 0040f23c1 )
Cybereason malicious.b8b69f
BitDefenderTheta Gen:NN.ZexaF.34212.jyW@a8hPIgok
VirIT Backdoor.Win32.Generic.RZV
Cyren W32/Vundo.KGDI-0056
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/Citirevo.AE
TrendMicro-HouseCall TROJ_SPNR.35AA13
Paloalto generic.ml
Kaspersky Backdoor.Win32.Cidox.etb
BitDefender Trojan.Vundo.GYS
NANO-Antivirus Trojan.Win32.Cidox.bdqawk
Avast Win32:Vundo-ACX [Trj]
Tencent Win32.Backdoor.Cidox.Ssgx
Ad-Aware Trojan.Vundo.GYS
Emsisoft Trojan.Vundo.GYS (B)
Comodo TrojWare.Win32.Kryptik.AOKV@4sn0fa
Baidu Win32.Adware.Kryptik.c
Zillya Backdoor.Cidox.Win32.834
TrendMicro TROJ_SPNR.35AA13
McAfee-GW-Edition BehavesLike.Win32.ZBot.ch
Sophos Mal/Generic-R + Troj/Mdrop-ETG
Ikarus Trojan-Downloader.Win32.Vundo
GData Win32.Trojan.Agent.T0G8BQ
Jiangmin Backdoor/Cidox.gz
Webroot W32.Malware.Gen
Avira TR/Drop.Vundo.V.61
MAX malware (ai score=100)
Antiy-AVL Trojan[Backdoor]/Win32.Cidox
Kingsoft Win32.Hack.Cidox.e.(kcloud)
Arcabit Trojan.Vundo.GYS
ViRobot Backdoor.Win32.A.Cidox.148992
ZoneAlarm Backdoor.Win32.Cidox.etb
Microsoft TrojanDropper:Win32/Vundo.AA
Cynet Malicious (score: 100)
AhnLab-V3 Spyware/Win32.Zbot.R44991
Acronis suspicious
VBA32 Backdoor.Cidox
ALYac Trojan.Vundo.GYS
TACHYON Backdoor/W32.Cidox.148992
Malwarebytes Spyware.ZeuS
APEX Malicious
Rising Spyware.Voltar!1.AF1D (CLOUD)
Yandex Trojan.Kryptik!OR48PHLukLE
SentinelOne Static AI – Malicious PE
eGambit Generic.Malware
Fortinet W32/Zbot.EQPB!tr
AVG Win32:Vundo-ACX [Trj]
Panda Trj/OCJ.B
CrowdStrike win/malicious_confidence_90% (D)
MaxSecure Trojan.Malware.4963167.susgen

How to remove TrojanDropper:Win32/Vundo.AA?

About the author

Robert Bailey

Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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