Win32/TrojanDownloader.Autoit.PAP

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/TrojanDownloader.Autoit.PAP detection usually means that your computer is in big danger. This virus can correctly be named as ransomware – type 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.
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Win32/TrojanDownloader.Autoit.PAP detection is a malware detection you can spectate in your computer. It usually appears after the provoking activities on your PC – opening the suspicious email messages, clicking the banner in the Web or setting up the program from untrustworthy sources. From the instance it shows up, you have a short time to do something about it before it starts its malicious activity. And be sure – it is far better not to wait for these harmful things.

What is Win32/TrojanDownloader.Autoit.PAP virus?

Win32/TrojanDownloader.Autoit.PAP is ransomware-type malware. It looks for the documents on your disk, ciphers it, and after that asks you to pay the ransom for getting the decryption key. Besides making your files inaccessible, this virus additionally does a lot of damage to your system. It alters the networking setups in order to prevent you from reading the removal manuals or downloading the antivirus. In some cases, Win32/TrojanDownloader.Autoit.PAP can also stop the launching of anti-malware programs.

Win32/TrojanDownloader.Autoit.PAP Summary

In summary, Win32/TrojanDownloader.Autoit.PAP ransomware activities in the infected computer are next:

  • 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;
  • Guard pages use detected – possible anti-debugging.;
  • Dynamic (imported) function loading detected;
  • Performs HTTP requests potentially not found in PCAP.;
  • CAPE extracted potentially suspicious content;
  • 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;
  • A scripting utility was executed;
  • Collects and encrypts information about the computer likely to send to C2 server;
  • Attempts to modify proxy settings;
  • Harvests cookies for information gathering;
  • Attempts to execute suspicious powershell command arguments;
  • Encrypting the documents located on the victim’s disks — so the victim cannot open these files;
  • Blocking the launching of .exe files of security tools
  • Blocking the launching of installation files of anti-malware programs

Ransomware has been a nightmare for the last 4 years. It is hard to imagine a more dangerous malware for both individual users and businesses. The algorithms used in Win32/TrojanDownloader.Autoit.PAP (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 actually exists, and possibly will exist. However, that malware does not do all these unpleasant things instantly – it may take up to a few hours to cipher all of your documents. Hence, seeing the Win32/TrojanDownloader.Autoit.PAP detection is a clear signal that you should start the removal procedure.

Where did I get the Win32/TrojanDownloader.Autoit.PAP?

Common tactics of Win32/TrojanDownloader.Autoit.PAP distribution are usual for all other ransomware examples. Those are one-day landing sites where victims are offered to download and install the free software, so-called bait emails and hacktools. Bait emails are a quite modern tactic in malware spreading – you receive the email that imitates some normal notifications about shippings or bank service conditions updates. Inside of the e-mail, 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 fairly uncomplicated, however, still requires a lot of attention. Malware can hide in various places, and it is far better to prevent it even before it invades your computer than to rely upon an anti-malware program. General cybersecurity knowledge is just an important item in the modern-day world, even if your interaction with a PC remains on YouTube videos. That can keep you a lot of time and money which you would certainly spend while looking for a fixing guide.

Win32/TrojanDownloader.Autoit.PAP malware technical details

File Info:

name: 2135FFBD31A24818CAB0.mlw
path: /opt/CAPEv2/storage/binaries/20ea06bc13e240b15552c82555e3bdbd066867c91a64ff32ad30dd660f974d47
crc32: E7D8A6A7
md5: 2135ffbd31a24818cab05de48415d382
sha1: 6ad7cdc2f39cfc43beb78443d50a260bccd9f039
sha256: 20ea06bc13e240b15552c82555e3bdbd066867c91a64ff32ad30dd660f974d47
sha512: 78f867151fe7cd131c0185924681d3b9011c8f65247177f27b9b675a42a45c5796a8b071c284b3b1f0c84c220971178c4e6837591ad6e3804f7bce232041003a
ssdeep: 6144:cof7DeNUSfGgHCU/2McdfoI/ZX0rYfCzuCCMQZN/OdnFQ8+uXNvxsCtrEK95:3YV6MorX7qzuC3QHO9FQgd5sCtF5
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1008412805ED2DD3AC09523B8D83BDD90682278B2CFD83B594399F62EB836787D40755E
sha3_384: 87ebc39adbe8dc56d54a16d8403b5093b54e6262df25316b951eb71958e9f5a677a168d913bc1c18955bf82c2f768342
ep_bytes: 60be00a048008dbe0070f7ff57eb0b90
timestamp: 2020-11-27 14:19:33

Version Info:

Translation: 0x0809 0x04b0

Win32/TrojanDownloader.Autoit.PAP also known as:

BkavW32.AIDetect.malware2
LionicTrojan.Win32.Mokes.m!c
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKD.35424673
FireEyeGeneric.mg.2135ffbd31a24818
CAT-QuickHealTrojanDownloader.AutoIt.Andro
ALYacTrojan.GenericKD.35424673
CylanceUnsafe
ZillyaBackdoor.Mokes.Win32.2538
K7AntiVirusTrojan-Downloader ( 0057019d1 )
AlibabaBackdoor:Win32/Mokes.0ffe170a
K7GWTrojan-Downloader ( 0057019d1 )
Cybereasonmalicious.d31a24
CyrenW32/Trojan.DZXQ-5869
SymantecTrojan.Gen.MBT
ESET-NOD32a variant of Win32/TrojanDownloader.Autoit.PAP
ClamAVWin.Malware.SmokeLoader-9774773-1
KasperskyBackdoor.Win32.Mokes.akwj
BitDefenderTrojan.GenericKD.35424673
NANO-AntivirusTrojan.Win32.Mokes.igjnmo
AvastScript:SNH-gen [Trj]
TencentWin32.Backdoor.Mokes.Hnkv
SophosMal/Generic-S
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.TrojanAitInject.fc
EmsisoftTrojan.GenericKD.35424673 (B)
APEXMalicious
AviraHEUR/AGEN.1138090
MAXmalware (ai score=88)
MicrosoftRansom:Win32/StopCrypt!ml
GDataTrojan.GenericKD.35424673
CynetMalicious (score: 99)
AhnLab-V3Malware/Win32.Generic.C2832953
McAfeeArtemis!2135FFBD31A2
VBA32Trojan-Downloader.Autoit.gen
IkarusTrojan-Downloader.Win32.AutoIt
RisingTrojan.PSRunner/Autoit!1.CD9C (CLASSIC)
MaxSecureTrojan.Malware.110176856.susgen
FortinetAutoIt/TrojanDownloader.PAP!tr
AVGScript:SNH-gen [Trj]
CrowdStrikewin/malicious_confidence_100% (W)

How to remove Win32/TrojanDownloader.Autoit.PAP?

Win32/TrojanDownloader.Autoit.PAP malware is incredibly difficult to remove manually. It places its documents in multiple places throughout the disk, and can get back itself from one of the parts. In addition, numerous changes in the windows registry, networking configurations and Group Policies are pretty hard to find and revert to the original. It is far better to utilize a special program – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the most ideal for virus removal objectives.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated nearly every hour. In addition, it does not have such problems and exposures as Microsoft Defender does. The combination of these facts makes GridinSoft Anti-Malware ideal for eliminating 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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