The Sirefef.3 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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Removing PC viruses manually may take hours and may damage your PC in the process. We recommend using GridinSoft Anti-Malware for virus removal. Allows to complete scan and cure your PC during the trial period.
What Sirefef.3 virus can do?
- Behavioural detection: Executable code extraction – unpacking
- Reads data out of its own binary image
- 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
- Yara rule detections observed from a process memory dump/dropped files/CAPE
How to determine Sirefef.3?
File Info:
name: D0B74A895A9DF3ECE25A.mlwpath: /opt/CAPEv2/storage/binaries/50566bcc96cff9ec855c20d08b0899e8237aba1d8a2624bf11b7bb54f014a067crc32: A906DD5Cmd5: d0b74a895a9df3ece25ae71b41bceaf4sha1: 54bb36f628bb6c15f0cd710b333baa36eca36739sha256: 50566bcc96cff9ec855c20d08b0899e8237aba1d8a2624bf11b7bb54f014a067sha512: 76e8fbf571648e54074de3cb86c276b310362ab7d61f41c157d4595cd74a0da18b7b04ed9b0617969a17d9910b8581d97d967f97613792457f771bbfa9acc24assdeep: 3072:RHYw3TXNun4qL1LXDAZheVd8qsgsmGropGSpXxFl/l4962iHu7GReqNQtUGZg9B/:KwDXNU4m1LmoeyGw/l4DiO7iLQuG88type: PE32 executable (GUI) Intel 80386, for MS Windowstlsh: T1D0141292CA683567E1D3E8370CFF412A9A045474B7779A978B0E6F48ED650B12A70F3Csha3_384: cddaa4e3bec41b24e3da9f6268f0c9d2ad981f011cf1f56766af1764bff07f5bba20f69ac86a0d9e070e3430194fe089ep_bytes: 60be00c041008dbe0050feff5783cdfftimestamp: 2011-05-17 16:32:46Version Info:
CompanyName: Fears Snug Void ThaiFileDescription: Vexes Car BuddyFileVersion: 2.4InternalName: Stern Billy Amuse VentsLegalCopyright: Copyleft © Beach Fount 2001-2006OriginalFilename: Emily.exeProductName: ThetaProductVersion: 2.4Translation: 0x0409 0x04b0
Sirefef.3 also known as:
| Lionic | Trojan.Win32.Zbot.lijp |
| Elastic | malicious (moderate confidence) |
| MicroWorld-eScan | Gen:Variant.Sirefef.3 |
| ClamAV | Win.Trojan.Zbot-27150 |
| FireEye | Generic.mg.d0b74a895a9df3ec |
| CAT-QuickHeal | TrojanPWS.Zbot.Y |
| McAfee | Generic BackDoor.sw |
| Zillya | Trojan.Kryptik.Win32.119769 |
| K7AntiVirus | Trojan ( 004d06f31 ) |
| Alibaba | Trojan:Win32/Kryptik.b299f9b3 |
| K7GW | Trojan ( 004d06f31 ) |
| Arcabit | Trojan.Sirefef.3 |
| BitDefenderTheta | Gen:NN.ZexaF.36132.mmKfaGn!wPmi |
| Cyren | W32/Zbot.CQ.gen!Eldorado |
| Symantec | Trojan.Gen.MBT |
| ESET-NOD32 | a variant of Win32/Kryptik.TFQ |
| APEX | Malicious |
| Cynet | Malicious (score: 100) |
| Kaspersky | HEUR:Trojan.Win32.Generic |
| BitDefender | Gen:Variant.Sirefef.3 |
| NANO-Antivirus | Trojan.Win32.ZAccess.dcmwlh |
| SUPERAntiSpyware | Trojan.Agent/Gen-Falint[Cont] |
| Avast | Win32:Rootkit-gen [Rtk] |
| Tencent | Win32.Trojan.Generic.Qwhl |
| Emsisoft | Gen:Variant.Sirefef.3 (B) |
| F-Secure | Trojan.TR/Crypt.ULPM.Gen |
| DrWeb | BackDoor.Qbot.75 |
| VIPRE | Gen:Variant.Sirefef.3 |
| McAfee-GW-Edition | Generic BackDoor.sw |
| Trapmine | malicious.high.ml.score |
| Sophos | Troj/Zbot-AZB |
| Ikarus | Trojan.Spy.ZBot |
| Jiangmin | Trojan/Generic.mhsm |
| Webroot | W32.Malware.Gen |
| Avira | TR/Crypt.ULPM.Gen |
| Antiy-AVL | Trojan[Backdoor]/Win32.ZAccess |
| Xcitium | Malware@#l5mt8jc7ce84 |
| Microsoft | VirTool:Win32/Obfuscator.QG |
| ViRobot | Backdoor.Win32.A.ZAccess.206848 |
| ZoneAlarm | HEUR:Trojan.Win32.Generic |
| GData | Gen:Variant.Sirefef.3 |
| Detected | |
| AhnLab-V3 | Backdoor/Win32.ZAccess.R11524 |
| VBA32 | Malware-Cryptor.ImgChk |
| ALYac | Gen:Variant.Sirefef.3 |
| MAX | malware (ai score=100) |
| Cylance | unsafe |
| Panda | Trj/Genetic.gen |
| Rising | Trojan.Generic!8.C3 (CLOUD) |
| SentinelOne | Static AI – Suspicious PE |
| MaxSecure | Trojan.Malware.300983.susgen |
| Fortinet | W32/ZAccess.WIB!tr |
| AVG | Win32:Rootkit-gen [Rtk] |
| DeepInstinct | MALICIOUS |
How to remove Sirefef.3?
- 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.
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