What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey
Spectating the Win32/Injector.CHWA detection name usually means that your PC is in big danger. This virus can correctly be named as ransomware – virus which ciphers your files and forces you to pay for their decryption. Removing it requires some specific steps that must be done as soon as possible.
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Win32/Injector.CHWA detection is a virus detection you can spectate in your computer. It usually shows up after the preliminary actions on your computer – opening the dubious email messages, clicking the banner in the Internet or installing the program from suspicious sources. From the instance it shows up, you have a short time to take action until it starts its harmful activity. And be sure – it is better not to wait for these malicious effects.

What is Win32/Injector.CHWA virus?

Win32/Injector.CHWA is ransomware-type malware. It looks for the documents on your disks, encrypts it, and then asks you to pay the ransom for receiving the decryption key. Besides making your files inaccessible, this malware also does a lot of damage to your system. It changes the networking setups in order to prevent you from looking for the removal guides or downloading the antivirus. In rare cases, Win32/Injector.CHWA can also prevent the setup of anti-malware programs.

Win32/Injector.CHWA Summary

Summarizingly, Win32/Injector.CHWA virus actions in the infected computer are next:

  • Yara rule detections observed from a process memory dump/dropped files/CAPE;
  • Reads data out of its own binary image;
  • CAPE extracted potentially suspicious content;
  • The binary likely contains encrypted or compressed data.;
  • Authenticode signature is invalid;
  • Behavioural detection: Injection (Process Hollowing);
  • Behavioural detection: Injection (inter-process);
  • CAPE detected the CryLock malware family;
  • Anomalous binary characteristics;
  • Ciphering the documents located on the victim’s disk — so the victim cannot open these files;
  • Blocking the launching of .exe files of anti-malware programs
  • Blocking the launching of installation files of security tools

Ransomware has been a major problem for the last 4 years. It is challenging to realize a more harmful malware for both individual users and corporations. The algorithms used in Win32/Injector.CHWA (typically, 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 already exists, and possibly will exist. But that virus does not do all these unpleasant things without delay – it can take up to several hours to cipher all of your documents. Hence, seeing the Win32/Injector.CHWA detection is a clear signal that you need to begin the removal procedure.

Where did I get the Win32/Injector.CHWA?

Standard methods of Win32/Injector.CHWA injection are typical for all other ransomware examples. Those are one-day landing web pages where victims are offered to download and install the free program, so-called bait emails and hacktools. Bait e-mails are a relatively modern strategy in malware distribution – you get the e-mail that mimics some normal notifications about shippings or bank service conditions modifications. Inside of the email, there is a corrupted MS Office file, or a web link which leads to the exploit landing page.

Malicious email spam

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

Avoiding it looks fairly uncomplicated, but still requires a lot of attention. Malware can hide in different spots, and it is better to prevent it even before it goes into your PC than to rely on an anti-malware program. Common cybersecurity awareness is just an important thing in the modern world, even if your relationship with a PC stays on YouTube videos. That can keep you a great deal of time and money which you would certainly spend while looking for a fixing guide.

Win32/Injector.CHWA malware technical details

File Info:

path: /opt/CAPEv2/storage/binaries/7b6363c835d1d8d5d20c5f91f48fb3d5d731f8de87eeffc89a3b908bed188be8
crc32: AA68669B
md5: 5adbdcfcfecd9ee1eb1f8f5cf5b6b848
sha1: d24019351f041bef955b8df65905d8cc662be5b7
sha256: 7b6363c835d1d8d5d20c5f91f48fb3d5d731f8de87eeffc89a3b908bed188be8
sha512: 0e19df68d3c7a468777171a06e3651ff753d9ce5504e436316f7463f6edbcd8626e3804435862e4bf223e64d112d63297dd1eb965d97e55c966540192013033b
ssdeep: 12288:GuQPD6d4uw9lxMwZM/0cLZmslcDk0nnEIZo+8dp+qTtdluhqT:r2K47yZLlcffk3jluhm
type: PE32 executable (GUI) Intel 80386, for MS Windows
tlsh: T1B2C4D00AF460B16CF5A155F093349F21657D667433FA8DE32FB750A91AA82CBC9DCA03
sha3_384: 1d8fbb34f12a28aa181cbfff6e1d85640e9474457a54db5f9207d08fbb44929aa5dc773dfe95ca24eba11717d6cb09ed
ep_bytes: e8fb3d0000e989feffff8bff565733f6
timestamp: 2015-08-28 20:52:43

Version Info:

0: [No Data]

Win32/Injector.CHWA also known as:

Bkav W32.RansomwareCHQc.Trojan
Lionic Trojan.Multi.Generic.4!c
MicroWorld-eScan Trojan.CryptoLocker.AT
CAT-QuickHeal Ransomware.Generic.WR4
ALYac Trojan.CryptoLocker.AT
Malwarebytes MachineLearning/Anomalous.100%
Zillya Trojan.Cryakl.Win32.103
Sangfor Trojan.Win32.Injector.CHWA
K7AntiVirus Trojan ( 0055e3991 )
Alibaba Ransom:Win32/Cryakl.13dd6be8
K7GW Trojan ( 0055e3991 )
Cybereason malicious.cfecd9
BitDefenderTheta Gen:NN.ZexaF.34754.KuW@aWAA14bm
Symantec Packed.Generic.505
Elastic malicious (high confidence)
ESET-NOD32 a variant of Win32/Injector.CHWA
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Cryakl.aal
BitDefender Trojan.CryptoLocker.AT
NANO-Antivirus Trojan.Win32.Encoder.dvwzlz
Rising Downloader.Wauchos!8.D9 (TFE:5:1lS6jZwgl5U)
Ad-Aware Trojan.CryptoLocker.AT
Emsisoft Trojan.CryptoLocker.AT (B)
Comodo Malware@#29irbc9zce06f
DrWeb Trojan.Packed.33448
VIPRE Trojan.CryptoLocker.AT
McAfee-GW-Edition BehavesLike.Win32.AdwareDoma.hc
Sophos ML/PE-A + Mal/Inject-FX
SentinelOne Static AI – Suspicious PE
GData Trojan.CryptoLocker.AT
Jiangmin Trojan/Cryakl.db
Avira HEUR/AGEN.1224232
MAX malware (ai score=100)
Antiy-AVL Trojan/Generic.ASMalwS.77
Kingsoft Win32.Troj.Undef.(kcloud)
Arcabit Trojan.CryptoLocker.AT
Microsoft Trojan:Win32/Bulta!rfn
Google Detected
AhnLab-V3 Trojan/Win32.ZBot.R163816
Acronis suspicious
VBA32 TrojanRansom.Filecoder
TrendMicro-HouseCall TSPY_HPDYRE.SM
Tencent Malware.Win32.Gencirc.10c737fa
Yandex Trojan.GenAsa!9twy82wNpp4
Ikarus Trojan.Win32.Injector
Fortinet W32/Simbada.EN!tr
Panda Trj/Genetic.gen

How to remove Win32/Injector.CHWA?

Win32/Injector.CHWA malware is extremely hard to remove by hand. It stores its data in multiple locations throughout the disk, and can recover itself from one of the elements. Moreover, countless changes in the registry, networking settings and Group Policies are fairly hard to locate and return to the initial. It is far better to make use of a specific tool – exactly, an anti-malware program. GridinSoft Anti-Malware will fit the most ideal for virus elimination reasons.

Why GridinSoft Anti-Malware? It is pretty light-weight and has its databases updated just about every hour. Moreover, it does not have such problems and vulnerabilities as Microsoft Defender does. The combination of these aspects makes GridinSoft Anti-Malware perfect for eliminating malware of any form.

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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